Fixed Catan board tiles for easier support free printing and less delicarte parts

This remix contains fixed tiles to address several printing issues I've experienced.
With these fixes I'm able to print the parts without support.

• The stilts of the harbor tiles have been increased to make them less delicate and prone to break off during printing
• The cactus sizes have been increased to make them less delicate. In addition one desert tile contains a skull, the other one a lizard.
• The pine trees are separated from the base of the tiles as they're hard to print. The size has been increased so they can be printed as one glue-on piece
• The wheat bundles in the wheat tiles are replaced with the less delicate and more robust one found here: https://www.thingiverse.com/thing:646001

I am aware that the files are quite large, I didn't reduce the polygon count after fixing them, I'll do so in the future.

For painting, I've included a paint guard for the normal and water tiles.

I'll add more fixes and remixes as my print progresses