Patchouli guide

[NathanPB]

• Wait for Potential bug with mod + extensions in alternate namespace VazkiiMods/Patchouli#611 to be fixed;
• Define color values and other properties for the book;
• Create textures for guide.
  • Book texture;
    • GUI texture;
    • Inventory texture.
  • Image frame texture;
  • Crafting recipe texture.

[Luligabi1]

Since Patchouli's issue hasn't moved since reporting, we might use Lavender instead, though it most likely won' downgrade to 1.20.1, so this will have to wait until 1.21.