Pyisotools

Changelog
- Fix data corruption when `main.dol` exists at non ordinary location
- Fix freeze when saving metadata to raw ISO
- Fix threads getting killed abruptly, now they are properly exited and resources are cleaned up
- Misc code cleanup

Changelog
- Fix building from a GCR root
- Remove non-functional taskbar progress bar
- Optimize imports

Changelog
- Fix error where window could be resized
- Fix bug where ISOs wouldn't load

Changelog
- Fixed nearest file offset entry in boot header not being set
- Fixed file alignment errors
- Fixed bug where files would clobber each other
- Various small optimizations

Changelog
- Fixed BNR searching; Now the .bnr of an `ISO` or `root` is searched as `*opening.bnr` in the top level directory for special cases where the name doesn't follow standard spec
- Fixed BNR handling; Now the `ISO` or `root` will open even if `*opening.bnr` isn't found in the top level directory.
- Fixed path handling; Now paths with japanese characters are properly handled.
- Fixed info display; Before, excluding paths wouldn't updated the child count displayed for directories. This is now fixed.

Changelog
- Hotfix update notifier; now it will actually notify when a new release come out