[WIP] Quality and Sprite changes to Conveyor Belts

[ProPeperos]

About the PR

Belts now stack to [n] per item
Added [SPRITE CHANGES]

WIP

• Add actual sprites (based on original, factorio, satisfactory conveyor belts) - stopped state forward arrow, forward green, backwards red
• Think about if adding turns is a good idea (maybe as a placeholder

Why / Balance

QOL for conveyor belts, make them more visually useful and less ugly when rotating

Technical details

Changed the view angles to 4 instead of 8 (why was it that way????) (reduced file size by result)
Replaced sprites - removed the unessesary turn sprites that were "unused" (were used when you were rotating the player camera which looked bad, so i removed them)
Added SyncSprite component
Added stack component for belts

Media

enjoy the wip belts for now

rotate.mp4

Requirements

• I have read and am following the Pull Request and Changelog Guidelines.
• I have added media to this PR or it does not require an in-game showcase.

Breaking changes

Changelog
🆑

• tweak: Conveyor Belts now have a [SPRITE CHANGES] and now stack to [NUMBER] in bag

[github-actions]

RSI Diff Bot; head commit da9dccb merging into dc63b14
This PR makes changes to 1 or more RSIs. Here is a summary of all changes:

Resources/Textures/Structures/conveyor.rsi

State	Old	New	Status
conveyor_started			Added
conveyor_started_r			Added
conveyor_stopped			Added

Edit: diff updated after da9dccb

[KaiserMaus]

ss14Starlight/space-station-14#3208