This enables the color of sheep wool to be displayed after shearing.

A new configurable boolean `sheepColors` is available, and I haven't added it to SettingsGUI. Please check `BedrockifyClientSettings.java`.

* update `BedrockifyClientSettings`
  - new field: boolean `sheepColors`

* registered mixin
  - `mixin.client.features.sheepColors.SheepWoolFeatureRendererMixin`

* new file
  - `assets/textures/entity/sheep_sheared.png`

Resolve conflicts.

Supports the user modification by Resource pack.

If OptiFine is present, its functionality is spoiled by this feature.

* new file `client.features.sheepColors.SheepSkinResource`
  - create sheared sheep texture at runtime

* removed file
  - `assets/textures/entity/sheep_sheared.png`

* update `BedrockifyClient`
  - register a new runtime resource `SheepSkinResource`

* update `SheepWoolFeatureRendererMixin`
  - refers the Identifier that created in `SheepSkinResource`

* update `BedrockIfyMixinPlugin`
  - disable this feature when optifabric is present

Avoid to throw NullPointerException.

…p-colors

More accurate calculations for HSV color: divide by 255.

Update JavaDoc.