Add support for MOSEK 9 (Fusion).
MOSEK 9 is out as a stable release, and it breaks PICOS support. For instance, running the testbench yields: The parameter name 'MSK_DPAR_INTPNT_NL_TOL_PFEAS' is invalid for a double parameter.
So it seems like new compatibility code to distinguish versions 8 and 9 is needed.
Edited by Maximilian Stahlberg