Adding drag'n drop of debug variable from DebugVariable grid and PouInstance variable list

Added support for defining extension file editor as DebugViewer

Fixed bug when copying transition and connected FBD or LD diagram. Wire between the new transition and new FBD or LD diagram was not selected.

Fixed boolean value displayed in debug variable panel

Fixed bug when indexing table in Pragma within ST/IL code

Fix bug in PLC Generator preventing output type of standard function to be computed correctly

Fix bug with representation of string variable value in DebugVariablePanel

Fix bug when copying transition and the connected FBD or LD diagram

Fix bug in LD_Viewer when selecting group of elements, wire selection was excluded in free drawing mode

Fix bug when using feedback loop in SFC program instead of jump

Adding support for disabling 2D and 3D graphics in DebugVariablePanel when matplotlib is not installed

Adding support for displaying graphs of debugged numeric variables in 2D and 3D in DebugVariablePanel

Fix bug debug variables from standard and library function blocks unregistered when transferring program

Fix bug multiple graph viewer tab displaying values of the same variable can be opened

Add function block types as data types that are not locatable