fix: set default channel index to 1 to match other software
test: some test code for matrix props support
todo: search for bitmaps in some paths
add: initial support for cpp exporter
fix: some update to new API
fix: vray_type and vray_pluing to RNA for easy cpp access
fix: add output for MeshLight
fix: missing texlayered controls UI; fixed add/del socket func
fix: useless output removed
fix: json gen function refactor to allow manual usage
fix: json gen function usage comment
fix: additional files
fix: useless loop removed
fix: better attr types; useless loop removed
fix: FLOAT_LIST to skipped types
fix: formatting
fix: export missing TexLayered params and sockets
fix: better json gen usage comment
fix: ui fix; move to JSON anyway
add: skin shader node