Implement an instrumenter, that turns of recording when the instrumenter is disabled

[AndreasGocht]

If MPI is used, the tracing might crash with:

[Score-P] src/measurement/tracing/SCOREP_Tracing.c:116: Fatal: Trace buffer flush before MPP was initialized.
[Score-P] Please report this to [email protected]. Thank you.
[Score-P] Try also to preserve any generated core dumps.

This happens, if there are to much event's before the MPI_Init() call. To avoid this, it seems reasonable to implement an instrumenter, that turns off the recording, until it is enabled. So a user could specify --noinstrumenter --instrumenter-type=limited-recording.