Created has_gp_buildperm()

created new function has_gp_buildperm([Player,] LocationArray) which returns a simple boolean.
Code copied and updated from my original code at:
https://github.com/mrfrase3/CHGP/blob/master/src/me/mrfrase3/chgp/CHGP.java
Fixed a variable error and fixed white spacing issues
Merge pull request #3 from mrfrase3/patch-1

Created has_gp_buildperm()