Request: Give FindMatlab an interface for adding MCC-built targets

Matlab provides (via an add-on) MCC, a compiler that will compile Matlab source files into binaries for a given platform. I haven't tried integrating this with CMake, but I expect adding a custom command/target calling mcc would work fine. But it would be nice to have a high-level function like matlab_add_mcc() that takes care of the same kind of configuration details done for matlab_add_mex() (especially any platform differences). Even just exporting a variable like Matlab_MCC_COMPILER would be useful for creating custom targets.