Move the processing for 'glibmmconfig.h' and 'giommconfig.h' so that they don't get auto-generated during a build
Move the processing for 'glibmmconfig.h' and 'giommconfig.h' so that they don't get auto-generated during a build

Auto-generating them while building our MSVC projects can sometimes cause the build to be constantly re-started (they now only get auto-generated when '-buildall' is specified).

johne53/MB3Glibmm,johne53/MB3Glibmm,johne53/MB3Glibmm,johne53/MB3Glibmm