added in some needed yaml files
and test tech levels (mods/ra/rules)
Adding to the Authors file
Renaming some variables and methods to describe what they are and do better.
Added in the ability to put prereqs on support powers
Added a new prereq provider that provides a prereq if the owner is of a certain race.
Added ability to make upgrades
Added an example of an upgrade in RA <not meant for pulling>
Added a check to prevent the TechTree.Add method from making watchers that dont have any prereqs