Changeset 2739 for researchTweet

• introduce Michael Reid's optimal solver code in its original state

(a.out, no work on cpushare integration here)

• introduce rubikutils, basicaly MR's structures and cube functions, but

adding cube orientation to the cube structure

• rubikutils' main() inputs and validate a cube with center faces.
• input order is:

F R U B L D UF UR UB UL DF DR DB DL FR FL BR BL UFR URB UBL ULF DRF DFL DLB DBR