(4b) - Updated stat display function for FactoryComplex

Properly shows Ore mines, additionally shows Mine Yields
(4b) - Rocks are given to complexes in a slightly smarter way

New function for Sector: allocate_rocks()- more planned functionality.
(4b) - minor tweak to prevent errors

25 MJ shield fix in the same spirit as a shove under the rug.
To be addressed later
Merge branch 'master' of https://github.com/ixp-/X3TC-Optimized-Factory-Complex-Generator