Add new easyconfig for CP2K compiled with ictce-4.1.13. Modify patch.

I had to modify fix_compile_date_lastcvs.patch. Apparently the Makefile we have, is different from the one that was assumed in the existing patch.
Additionally I had to disable the testing function in the easyblock because it failed there, even though there is the ```ignore_regtest_fails = True``` in the config file.