Major Performance Optimization - Update 0.71-

Today, thanks to feedback from the community, I was able to pinpoint several performance degrading issues. After identifying this issues and confirming through heavy CPU and GPU profiling. I then Implemented the following changes: -Removed one of the Landscape's sub shaders that used indiscriminately a World Position Offset solution to create a faux depth for the grass texture at distance. -Changed the deprecated Landscape sub shaders for a more conservative but creative artistic solution (a solution similar to the one used for the dynamic grass). -Improved the Chicken's LODs in over 60% achieving a reduction in chicken polycount now of over 85% -Changed the method for GI and AO to a more conservative solution based on a performance/aspect compromise (in contrast from just aspect). I am super thrilled to report that test benches workstations have an improvement in performance in up to 20fps. Please try the patch yourselves and let me know on the forums how much of an improvement it makes! Cheers!