Merging projects now accomodates models with different project norths

Fix bug where automatic false origin detection didn't do anything if …

…linking from an empty Blender session

fix IfcOpenShell#4665 - View layerset thicknesses in feet and inches …

…format

bump BBIM build

Little typo

IfcWrap CMake - migrate to FindPython

Previously it was giving deprecation warnings:

CMake Warning (dev) at /IfcOpenShell/src/ifcwrap/CMakeLists.txt:38 (FIND_PACKAGE):
  Policy CMP0148 is not set: The FindPythonInterp and FindPythonLibs modules
  are removed.  Run "cmake --help-policy CMP0148" for policy details.  Use
  the cmake_policy command to set the policy and suppress this warning.

  CMake Warning (dev) at /IfcOpenShell/src/ifcwrap/CMakeLists.txt:73 (FIND_PACKAGE):
  Policy CMP0148 is not set: The FindPythonInterp and FindPythonLibs modules
  are removed.  Run "cmake --help-policy CMP0148" for policy details.  Use
  the cmake_policy command to set the policy and suppress this warning.

See IfcOpenShell#4964. Forgot to commit qto function.

Minor fix to warn users closing an error that their model could be in…

… a bad state (future sync errors etc)

Add georeferencing integration tests

Merging projects can now handle projects with different false origins

Warning: I haven't yet looked at rotations. Yikes. No CRS reprojection either.