libpcp_trace: change to use the new debugging options mechanisms
libpcp_trace: change to use the new debugging options mechanisms

- no #ifdef PCP_DEBUG
- no reference to pmDebug or __pmParseDebug()

adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp