Builder's Fantasy

- Added Fossil structures that generate in Pale Caverns

- Added experimental Spider Silk and Web Silk

- Spider Silk is a new block that functions similarly to scaffolding. For now, it is an uncraftable item, and can only be obtained in survival. 

- This block can be placed in any direction.

- When placed on the side of a solid block, you can right click on the silk while holding the same type of silk to add more to the end of it.

- Silk is climbable.

- Spider silk is a block you can walk through, as with web silk, you cannot. This is to prevent spiders that are chasing the player from following the player up the silk, as spider silk cannot be climbed by spiders.

Features I would like to add in the future:

- Due to the fact that MCreator does not currently have proper directional detection, the functionality is limited, which is why silk cannot be crafted in survival mode.

- In the future, there will be 4 different types of silk instead of 2. There will be Dense Silk, and Frail Silk variations of the Spider Silk and Web Silk. These variants will cause the web to break depending on if the web is either attached to a block, or another web depending on the direction of the web.