added a utility function to compare string-set suffixes
added a utility function to compare string-set suffixes

[git-p4: depot-paths = "//sw/gpgpu/nvbio/main/": change = 18776822]

kimrutherford/nvbio,NVlabs/nvbio,NVlabs/nvbio,NVlabs/nvbio,kimrutherford/nvbio,kimrutherford/nvbio,NVlabs/nvbio,kimrutherford/nvbio