Optimization changes for merge Sort
Benchmark code
Merge branch 'develop' of https://github.com/HSA-Libraries/Bolt into new-changes
Merge remote-tracking branch 'upstream/develop' into StableSortOptimization
Merge sort optimization for StableSort and StableSortByKey
Added support for size in getBuffer() function
Added Some test cases for float,double and UDD + some doc changes
Corrected some test cases + changed kernel name
Merge pull request #138 from avinashcpandey/StableSortOptimization

Stable sort optimization
Merge branch 'develop' of https://github.com/HSA-Libraries/Bolt into new-changes
Some changes to AMP stable_sort & sort. Added more range tests to AMP binary search, sort & stable sort