[UMC 1.2.0] Add support for flares/lighting

[Danielxs01]

[Testbuild] Add support for flares/lighting

[cam72cam]

Ping me here or on discord if you would like any assistance!

[Danielxs01]

PoC finished with commit: 2b647ceeefed53a17694f66c1a8647bbc47cc78b

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Open TODOs

Signals

• [x] Move rotation, offset and pitch to contentpack-entry and remove it from obj-group
• [x] Add ability to state multiple obj-groups / remove need for "lightflare"-group
• [x] Implement always-on
• [x] Add caching
• [x] Add preloading
• [x] Add support for blocks modified with the manipulator tool (Difficulty: Severely depressing)

Complex signals

• [ ] Implement flares
• [ ] Add caching
• [ ] Add preloading

Signs

• [x] Implement flares
• [x] Add caching
• [ ] Add preloading

Assets

• [x] Implement flares
• [x] Add caching
• [ ] Add preloading

Levers

• [x] Implement flares
• [x] Add caching

• [ ] Add preloading

Others

• [ ] Create documentation
• [x] Provide test build in discord and wait for responses
• [ ] Create release 1.4.0

[Danielxs01]

• [x] Fix mentioned issue.