windows_certificate: Add testing of the defaults and allowed properties
windows_certificate: Add testing of the defaults and allowed properties

These should have been tested when I merged this in. It's easy stuff to verify with unit tests.

Signed-off-by: Tim Smith <764ef62106582a09ed09dfa0b6bff7c05fd7d1e4@chef.io>

martinisoft/chef,nvwls/chef,gene1wood/chef,chef/chef,nvwls/chef,Tensibai/chef,mwrock/chef,mattray/chef,mattray/chef,nvwls/chef,tas50/chef-1,gene1wood/chef,jaymzh/chef,martinisoft/chef,higanworks/chef,mwrock/chef,mattray/chef,gene1wood/chef,Tensibai/chef,gene1wood/chef,mattray/chef,MsysTechnologiesllc/chef,jaymzh/chef,Tensibai/chef,MsysTechnologiesllc/chef,higanworks/chef,Tensibai/chef,MsysTechnologiesllc/chef,chef/chef,higanworks/chef,higanworks/chef,nvwls/chef,nvwls/chef,tas50/chef-1,jaymzh/chef,martinisoft/chef,tas50/chef-1,mattray/chef,chef/chef,mwrock/chef,tas50/chef-1,higanworks/chef,Tensibai/chef,MsysTechnologiesllc/chef,mwrock/chef,nvwls/chef,chef/chef,jaymzh/chef,martinisoft/chef,martinisoft/chef