Just released version 1.1 with blueprint support! 
Release notes:
- Changed so the plugin no longer has a runtime part, meaning it now works on all target platforms
- Added initial support for packing meshes in Blueprints
- Added support for packing meshes in plain Actors
- Added support for CustomPrimitiveData on meshes
- Added option to ignore specific Blueprints
- Added option to ignore specific Materials
- Added option to print extra debug information in the output log while packaging
- Added ability to ignore certain Actors/Components by using the tag MeshPack_Ignore
- Made list of “maps to pack” optional
- Fixed a bug where the plugin would crash if a PackedLevelActor had a ISM without a valid mesh