refs #9509. Skeleton algorithm.
refs #9509. Works for single peak.

Simple implementation and testing for a single peak. Lots of test and development work to do yet.
refs #9509. Additional testing of functionality.
refs #9509. Fix logic error and perf tests.

Add performance tests. Currently running at 2.2 seconds on my OSX debug build.
refs #9509. Single threaded CCL works faster.

Small adjustment to the code to use single threaded CCL. Results in a 4-5 times speed up. This is because we have n * small images being processed rather than one large one. The overhead of the parallel execution completely dominates the speed up acheived from the asynchronous thread execution in this case.

The next step will be to make the algorithm parallel with respect to the individual peaks in the peak list. This should result in a further speedup.
refs #9509. Parallel over peaks.

Each peak is integrated in parallel. Execution time for the performance tests is now 0.07 seconds. This is nearly an order of magnitude faster than the last modification, and about 40 times faster than the original implementation.
refs #9509. More code documentation.
refs #9509. Fix GCC warnings and errors.
Merge branch 'feature/9509_integrate_peaks_hybrid' into develop