Added recognition of MOPAC 2007, 2009 and 2012 output files.

Hi,
I have added recognition of MOPAC 2007, 2009 and 2012 output files to the cdk-ioformats module simply by using the `MOPAC2002Format.java` and `MOPAC2002FormatTest.java` files as a template.

I hope that this patch can make it into the next release.

Cheers,
Oliver