Implemented a concept of importing sequence transformation collections.
Implemented the export of sequence transformation collections.
Added buttons to add and remove STCs.
The field unknown2 of MAT_V15 is actually a float.
For fields of type float the default value must also be a float.
Added VertexFormat0x186027d, to fix the import of the UlaanSmokeBridge.m3 model
Added support for unnamed bones
Don't create a bone lookup index for each vertex.
Merged the branch 'master' into the experimental 'stc' branch.
Fcurves can now be assigned to a STC.
Fixed an issue with exporting STCs with the name "full".
Fixed a rounding error that caused deformed geometry.
Fixed the export of multiple UV layers when the user does not select the meshes.
Import and export a material flag which seem to activate darker normal mapping.
The m3addon ignores now empty meshes insead of throwing an exception.
Added import and export of lights.
Fixed the type of a light field.
Mark new m3 lights as turned on by default.
Store animated properties of STCs as objectId, path pair instead of animIds in order to be independent of them.

This commit also ensures that each animated property is in exactly 1 stc.
Set the quick export file path at normal export.