Updated to match recent changes to Gigastructural Engineering

Minor updates brought in from Gigastructural Engineering

Incorporated minor cost changes for terraforming megastructures

Updated to account for additional planets in December 9th Updates to Planetary Diversity Mods.

Added Support for Semi-Arid, Glaciovolcanic, and Sulfur Worlds

The overwrite of the Gigastructures terraforming file was remove. All the corrections and changes that I made were accounted for in the main mod.

Added the links of Red Toxic Planet to the Planetary Diversity worlds. Exotic Worlds, Tomb worlds and Lifeless worlds connections have not been made.

Integrated some recent changes made to the Gigastructures Terraforming Files

Made a change to planetary habitats.