Various internal machine api improvements

[Swedz]

• Improves model API to allow so it is more extensible (moved to Make machine casings use ResourceLocations and translations #945)

• Use ResourceLocation for machine casing ids. If no namespace is provided, it defaults to MI's namespace (moved to Make machine casings use ResourceLocations and translations #945)

• Widen visibility and overridability of some methods and variables in ShapeMatcher (moved to Make machine shape matcher api more extensible #937), CasingComponent (moved to Make CableTier more accessible #939), and MultiblockMachineBlockEntity (moved to Make machine shape matcher api more extensible #937)

• Make the CableTier of EnergyHatch and CasingComponent accessible (moved to Make CableTier more accessible #939)

• Improves shape matcher API to allow for machines to define their own custom shape matcher and also standardizes the various methods triggered relating to multiblock shape matching (lots of duplicate code is removed) (moved to Make machine shape matcher api more extensible #937)

• Improve the internal storing of components such that they can be accessed and modified in the same way for both and includes some extra utility methods (I think I covered all reasonable use cases) (moved to Make machine component api more consistent and accessible #938)

• Allow for vertical orientations in OrientationComponent (moved to Allow vertical orientations with component #940)

• Allow BackgroundRenderedSlot to override the atlas used to render them (moved to Let BackgroundRenderedSlots override the background atlas #941)

[Swedz]

It might make sense to also add the CableTierHolder interface to electric machines and get the tier from their casing component. That can easily be done. Doing it for multi blocks is a little ambiguous since a multi block electric machine can have multiple types of hatches on it. It could just use the highest tier, though. Would either of these changes be acceptable? (moved to #939)