Big update introducing ... not trims...

• Elytra dyeing: Color your elytra in any color by mixing it with dyes in a crafting grid.
• Elytra patterns: Combine elytra and a banner in crafting table to put all patterns on the elytra.
• Mod config: Use /et-config command to configure how you want to display all the features.
• Show Me Your Skin compatibility.
• Server side support: Enables new crafting recipes on the server. Clients are not required to have the mod installed. However, even without server-side you can manually edit item nbt data to enable feature rendering.