Bugfixes and optimizations in TIS and MOS viewers
Added BGEE support to PLT resources
Bugfix in BamResource
Bugfix in CHU file support
Cleanup in File menu and minor fixes

- moved Area Viewer into the respective area view tab
- moved CHR to CRE conversion to the CHR editor
- minor fixes in TIS viewer
Merge branch 'devel' of https://github.com/Argent77/NearInfinity into argent77-devel
Merge branch 'argent77-devel' into devel
Merge branch 'devel' into devel-ci
Fix some File constructors that had slipped through