plugins: Suggest my-<command>.pp modules instead of mypol.pp
    
    You can have only one mypol modules in system, therefore when
    a setroubleshoot plugin suggest to create and load mypol.pp, it
    overrides the existing one. The new plugin name format is
    my_<command>.pp where <command> is based on comm= field from the audit
    event.
    
    Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1329037