ODC-STAC 0.5.1

Support for custom fuser functions, and a bug fix.

What's Changed

• Custom fusers by @SpacemanPaul in #254
• Fix proj extension regression. by @SpacemanPaul in #253
• For 0.5.1 release by @SpacemanPaul in #255

Full Changelog: v.0.5.0...v0.5.1