Update testing files

[pv33]

Get the testing files updated to current codebase.
All of the puzzle_solver/puzzle/xxxx/testing folders will be put into puzzle_solver/testing/xxxx' folders. Then the code will be incrementally revised to work. There appears to be duplicate python files for some of the test scipts. The older ones have an underscore _` in them. The new ones don't. Have to get them worked out just in case the older ones test different bits of code. Bits that are still relevant after the code update.

The folders to move and update are:

• pieces/testing (to be moved last since being actively worked on now)
• puzzle/testing/clusters (moved to testing/clusters)
• builder/testing (moved to testing/builder)
• parser/testing (moved to testing/parser)
• puzzle/solver/testing (moved to testing/solver)
• simulator/testing (moved to testing/simulator)
• puzzle/testing/utils (moved, low priority, as needed)
• puzzle/testing/*py (moved to testing/core)

Some of the code was already moved or in the proper place, but is out of date. Noting here. These should be completed first before moving to the ones above:

• testing/pieces ( All good except for todo files for SIFT; Devesh).
• testing/clusters (All good except ROS part not re-tested recently; Patricio)