Added first cut at help files for modeling workbench commands.

modules/workbenches/modeler/features/boolean/docs/index.md

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+# BOOLEAN OPPERATIONS
+Boolean operations allow for solids to be used as tools to shape and modify other solids.
+
+# UNION
+Union allows solids to be combined to create a new solid.
+
+# SUBTRACT
+Subtract allows one solid to be used as a cuttong tool for another sold. Usefull for making hole features.
+Selection A will have selection B removed from it.
+
+# INTERSECTION
+Intersection allows for the creation of a new solid in the space where 2 exising solids overlap. 
+

modules/workbenches/modeler/features/extrude/docs/index.md

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+# EXTRUDE
+The EXTRUDE command allows for selection of a face or sketch to be extruded.
+
+By default the extrude direction is perpendicular to the selected face. A extrude direction vector can be specified by selecting an existing edge, sketch line or existing face.
+ 
+The boolean drop down and target allows for boolean operations with existing 3d solids. 

modules/workbenches/modeler/features/fillet/docs/index.md

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-place holder
+# FILLET
+The FILLET command allows for section of edges of a solid body. the selected edges can be broken with a specified radius or if champer option is selected a broken corner with flat surface offset by the specified size.

modules/workbenches/modeler/features/loft/docs/index.md

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+# LOFT
+The LOFT command allows for selection of 2 or more closed sketch loops that are not on the same plane. A new solid is created between the two closed sketch loops. It is useful for creating things like an aircraft wing where multiple cross sections are specified as sketches and a solid body is created by creating faces between these sections.
+
+If more than 2 loops are used to create the shape specifying the loft type as smooth will result in smooth faces being created between each of the sections. Specifying sharp will result in separate faces for each segment in each subsection of the loft
+
+The boolean drop down and target allows for boolean operations with existing 3d solids. 

modules/workbenches/modeler/features/mirrorBody/docs/index.md

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+# MIRROR BODY
+The MIRROR BODY feature allows for selection of one or more shells in the 3d environment. A mirror plane is specified by selecting a plane or existing planar face. New bodies are created in the mirror image of the selected bodies.

modules/workbenches/modeler/features/primitiveBox/docs/index.md

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+# BOX
+The BOX command can be accesed by hovering over the center point of an existing datum and clicking. This brings up a menue with the BOX command as an option. 
+
+Size of the box can be specified with the X, Y and Z size fields. 
+The boolean drop down and target allows for boolean operations with existing 3d solids. 

modules/workbenches/modeler/features/primitiveCone/docs/index.md

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+# CONE
+The CONE command can be accesed by hovering over the center point of an existing datum and clicking. This brings up a menue with the CONE command as an option. 
+
+Size of the CONE can be specified with the Diameter A, Diameter A and Height fields. Specifying a value of 0 for either of the diameter fields will create a cone with a sharp point.
+The boolean drop down and target allows for boolean operations with existing 3d solids. 

modules/workbenches/modeler/features/primitiveCylinder/docs/index.md

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+# CYLINDER
+The CYLINDER command can be accesed by hovering over the center point of an existing datum and clicking. This brings up a menue with the CYLINDER command as an option. 
+
+Size of the CYLINDER can be specified with the Diameter and Height fields. 
+The boolean drop down and target allows for boolean operations with existing 3d solids. 

modules/workbenches/modeler/features/primitiveSphere/docs/index.md

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+# SPHERE
+The SPHERE command can be accesed by hovering over the center point of an existing datum and clicking. This brings up a menue with the SPHERE command as an option. 
+
+Size of the SPHERE can be specified with the Radius field. 
+The boolean drop down and target allows for boolean operations with existing 3d solids. 

modules/workbenches/modeler/features/primitiveTorus/docs/index.md

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-place holder
+# TORUS
+The TORUS command can be accesed by hovering over the center point of an existing datum and clicking. This brings up a menue with the TORUS command as an option. 
+
+Size of the TORUS can be specified with the Radius and Tube Radius fields. 
+The boolean drop down and target allows for boolean operations with existing 3d solids. 

modules/workbenches/modeler/features/revolve/docs/index.md

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+# REVOLVE
+The REVOLVE command allows for selection of a face or sketch to be revolved about a centerline.
+The Angle field allows you to specify in degrees where the end face of the revolve is created. Specifying an angle of 360 creates a full revolution wile specifying 90 would result in 1/4 of a complete revolution. The revolution starts from the face or sketch selected.
+
+The Vector specifies the revolution axis. This can be supplied as a sketch segment or edge of existing geometry in the model.
+ 
+The boolean drop down and target allows for boolean operations with existing 3d solids. 

modules/workbenches/modeler/features/shell/docs/index.md

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+# SHELL
+The SHELL feature allows for creation of a new bodyas the result of hollowing out an exising body. The faces you select are removed from the object and the thickness specified is used to create the new offset faces making the shell. 
+
+Multiple faces can be selected. For example if the top and bottom faces of a cylinder were selected a hollow tube with the thickness specified would be created.