Merge (theirs) remote-tracking branch 'origin/v1.2.3_resource_split' into releases

Generated solely for a merge into debian branch to maintain linear
history of "upstream releases"

* origin/v1.2.3_resource_split:
  fix help files updating script for reorganization
  further split up resources into general (command and gui), gui, and help (as the largest resource folder, to help compilers on 32bit)
  test splitting resources to put the largest subfolder into its own separate source file