Modify 30_nice_revocation_request.t to use new test classes
Modify 30_nice_revocation_request.t to use new test classes

Additionally the test is now independet of other tests and external
files.

oliwel/openxpki,openxpki/openxpki,stefanomarty/openxpki,stefanomarty/openxpki,openxpki/openxpki,openxpki/openxpki,oliwel/openxpki,stefanomarty/openxpki,stefanomarty/openxpki,stefanomarty/openxpki,oliwel/openxpki,oliwel/openxpki,stefanomarty/openxpki,oliwel/openxpki,openxpki/openxpki,oliwel/openxpki