Added regression test framework
Added regression test framework

andersx/cclib,ATenderholt/cclib,andersx/cclib,berquist/cclib,jchodera/cclib,ATenderholt/cclib,ben-albrecht/cclib,langner/cclib,Clyde-fare/cclib,berquist/cclib,ghutchis/cclib,Clyde-fare/cclib,ben-albrecht/cclib,Schamnad/cclib,gaursagar/cclib,cclib/cclib,langner/cclib,gaursagar/cclib,jchodera/cclib,berquist/cclib,ghutchis/cclib,langner/cclib,cclib/cclib,cclib/cclib,Schamnad/cclib