breaking change: equals removed in v2.0.6

[LukasMirbt]

Describe the bug
The public equals function was removed from equatable_utils.dart in v2.0.6 causing dependent code to break.

Additional context
In my case, I use the dart-dio OpenAPI generator with equalityCheckMethod: equatable which broke in v2.0.6.

[felangel]

Sorry about that! I’ll get a fix out shortly — I was under the impression that the utilities were not publicly exported.

[felangel]

@LukasMirbt I just took a look and it doesn't look like equals or any of the equatable_utils were publicly exported in v2.0.5. They open api generator was directly importing a private method straight from the src directory which is never safe :(

[LukasMirbt]

Hm, yea you're right. It imports 'package:equatable/src/equatable_utils.dart'; which one could argue makes it not a breaking change.

Is it still worth adding it back considering how widely used the package is and that it breaks some use cases (even if the file is inappropriately imported)?

[felangel]

Even though it's technically not a breaking change I re-introduced equals in #190

[felangel]

This should be fixed in v2.0.7 🎉