wobble coin updated to version 1.0.2!

In preparation for the release on the Unity Asset Store, wobblecoin has been updated to version 1.0.2 with the following changes!

• Added support for the Universal Render Pipeline as well as the existing Built-in pipeline. 
• Created all new sample scenes to show off the COIN's functionality
• New UV unwrap that makes it much simpler to create your own designs!
• Added six coin design meshes that can be dragged and dropped under the COIN transform to customise it
• Restructured package to simplify import and usage