v1.9.2

Major update to cct.py (old function can still be found in cct_legacy.py). Even faster implementations + new methods. (brute-force search is not implemented in new module as some of the other methods can be faster and more accurate). Note that compared to v1.9.1 lot of lut generation functions and the way lut's can be represented as tuples has changed (leading to faster excecution).