* Draft: Cache ContinueMode setting for every tool separately
Currently ContinueMode is done to be held globally, so this patch
changes this to cache it inside `user.cfg` for every cmd separately.
* Draft: Add Chained Mode option for Dimension
Added new option under Dimension, although this is simply porting the
existing logic of "Continue" under "Chained Mode", whereas allowing
existing "Continue" mode to retrigger the command instead of placing
Dimensions in a chain.
Now, user can create :
- Variant Layout / combination of ArchStructure (Slab) in addition to ArchWall and CurtainWall based on same ArchSketch, with another PropertySet
- Variant Properties / layer of ArchWall on same ArchSketch with different Width, Offset, Material, Height etc. to create Layers, Composite walls etc. (Layout, Layer, Combination, Composite, Elemented etc.)
FreeCAD Forum Discussion:
- https://forum.freecad.org/viewtopic.php?t=87721&start=130#p794785
