New 16x16 blocks for a better looking spaceship

Redefined blocks from 8x8 to 16x16 (thrusters & wings not updated yet).



Few visible progress because I'm designing and coding the fact to place blocks that are not only 1x1 square, with some smart rules so blocks like weapons to know that they can only be added near a hull, and so on (these already exist but were hardcoded).

Anyway, the ship above is 100% procedural