hdf5_chunking_query_bmr

[svn-r21931] HDFFV-7689 - could not not use a "[" character in a dataset name.
A second problem also discovered was an if statement that should have comapered lengths of a string actually was comapring addreeses. Once thatt was fixed, The "[" character could be used but broke other functionality. Consultation with tools team resulted in the creation of a "--no-subset" option to disable interpretation of "[" character as a subsetting compact-form. This also eliminated and cleaned up the code containing the plomatic if statement.

Tested: local linux and added test, CMake updated autotools test to be added next.