- File inputs marked with the 'lut_library' property (currently the
OCIO LUT node) now show a combo box populated from the global LUT
library above the path field: pick a library LUT directly, or use
'Other (Custom File)...' with the regular path field; selections go
through the standard undoable input-change path
- Refresh zh_CN translations with lupdate and translate all strings
introduced by the proxy dialog, LUT library, LUT picker, waveform
sync and footage start time work
- Document the new per-footage custom <proxy> attributes and the
'manual' source-start-time origin in the project file reference
- Add LutFileField UI tests