New Features

Added the ability to more efficiently search for and select sequences from the PSA Import panel:
- Regular expression matching
- Selecting sequences from a text block
A sequence's frame rate and original sequence name is now preserved in the action's custom properties, allowing that data to be reused on export
Added the ability to use timeline markers to delineate sequences for export, allowing users to use the NLA without needing to bake actions
The bone length can now be specified upon PSK import

Bug Fixes

Fixed a bug where excluding bone groups could result in a botched PSA export in some cases