Patch update - group picker, Roots behavior fixes and improved xml compare.

What's Changed

• V16/thirteen roots update by @KevinJump in https://github.com/KevinJump/uSync/pull/784
• member group picker (still saving int's) by @KevinJump in https://github.com/KevinJump/uSync/pull/785
• tweak the xml compare, so we get less false positives in root diffrences. by @KevinJump in https://github.com/KevinJump/uSync/pull/787

Full Changelog: https://github.com/KevinJump/uSync/compare/v16.0.1...v16.0.2