Concurrent map deletion with bool return value (#20)

Fixing bug in cmap individual delete and adding a unittest (#19)

Unique insertion functions with boolean return value (#15)

Updating computeLoadFactor with slabs counting (#14)

Adding unique insertion to cmap (#12)

Add individual count operation for cmap (#11)

Add some tests to cover basic hash build and search

Use the CommandLine.h file to handle cmd line arguments

Separate command line functions to be reusable.

Add initial tests for concurrent map class

Add googletest to provide proper unit tests for the code

Use the new SlabAlloc

Add a helper function to print hash table information.

Add a local allocator context per thread (ConcurrentSet)

Add a local allocator context per thread (ConcurrentMap)