* Make the app progress indicator only have the indeterminate state
when the taskbar indicator is used (causes an uused variable warning
on wx<3.1)
* Remove unused dry run variable in pcb_netlist.h
* Remove unused forceDropAnnotations from the paste special dialog
since the dialog only controls keeping them.
ADDED: Progress indicator in the taskbar
This adds a progress indicator to the Windows and macOS taskbar
icons to display the progress of some operations.
Note, this requires wxWidgets 3.1+
Replace SEVERITY_ERROR by RPT_SEVERITY_ERROR to avoid collision with a system definition.
Replace other SEVERITY_XXX by RPT_SEVERITY_XX for consistency.
Fix compil warnings and some other compil issues.
Currently, if a old label already containing a '/' (or a space) is edited, it is accepted,
but no new not allowed char can be added to the label.
(Previously, a sheet pin label was not filtered)
File "rules" has instructional text as comments near top.
2) Convert all text files in repo to LF line ending form.
Any checkout done with "rules" in play will convert the working
tree to native line ending, while keeping repo as LF line ending.