dem-bones

Fix processing multiple input files

• Add stop on convergence to cbIterEnd(), cbWeightsIterEnd(), cbTransformationsIterEnd()
• Add --bindUpdate=2 flag in the command line tool to group joints
• Add --tolerance and --patience flags in the command line tool using cbIterEnd()

• Add per-bone transformation hard-lock and per-vertex weights soft-lock
• Fix initialization issue on cluster splitting
• Support joint orientation in command line tools
• Add command line tool for Linux
• FBXSDK 2020, Alembic (from Maya 2020 DevKit)

• FBXSDK 2019, Alembic (from Maya 2019 DevKit)
• Command line tools for Windows and MacOS

• Add DemBonesExt default constructor