Napari-boxmanager

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- Fix reading Float16 mrc files.

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- Fix cbox reading that got broken before.

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- Linking now allows renaming
- Filtered images now get automatically linked

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- Fix error that occurs when filament and particle cbox files get loaded together.

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- Fix error that occurs when coordinate layers are deleted and then reloaded.

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- Make "Add" mode default when clicking on "Create Particle Layer"
- Read/write support for filaments in CBOX format
- Read/write support for filament in helicon format
- Read/write support for Relion STAR files.
- Option in organize_layer to save all coordinates/filaments to a directory
- Add a simplified call 'napari_boxmanager'
- Improved matching
- Many bug fixes