VerticaSlabBlocks

Added several new features for mixing different types of vertical slabs.

• Sneak + Mine: Remove only the targeted half.
• Sneak + Right Click: Replace the material of only the targeted half.
• Middle Click: Select the targeted material from a mixed vertical slab.

Also added the following features:

• Added dyeing recipes for vertical slabs.
• Added the ability to craft beds using wool vertical slabs. ⚠ This feature is disabled by default and must be enabled separately in the config!