Macaw's Bridges

Changes:
- All Bridge Stairs have a new model, they now properly connect to bridges
- Wood Log and Stone Bridges have a slightly changed end part
- Bamboo Bridges have a slightly improved model
- Dry Bamboo Bridge (base/platform) has been improved to look better when wider than 1 block
- Rope Bridges have an improved model especially for wider bridges than 2 blocks
- Bridge Stairs have a simplified collision/hitbox

Performance:
- Optimized memory usage (71-76% less memory usage)
- Optimized light calculation for lit up bridges/stairs
- Improved loading time

Fixed Bugs:
- All recipes unlock instantly
- Texture misalignment on Bamboo Bridges

Technical Changes:
- Changed the blockstates from multipart to variant for rope bridges & bamboo bridges
- Removed Waterlogging
- Removed unused block states from Rail Bridges