Update internal use of old macros

[PhilMiller]

We introduced a consistent set of NGEN_WITH_FOO macros, and started using them. We should go through and replace uses of the old, inconsistent ones.

[PhilMiller]

Editing the listed output below to reflect changes already made

$ git grep -o -h -E '[A-Z_]*_ACTIVE' | sort | uniq

• ~BMI_C_LIB_ACTIVE~
• ~NGEN_C_LIB_ACTIVE~
• ~NGEN_BMI_C_LIB_ACTIVE~
• ~BMI_FORTRAN_ACTIVE~
• ~NGEN_BMI_FORTRAN_ACTIVE~
• ~LSTM_TORCH_LIB_ACTIVE~
• ~NGEN_ACTIVE~ (signal to stuff in extern/)
• ~NGEN_FORCING_ACTIVE~ (these control stuff inside Noah-OWP-Modular)
• ~NGEN_OUTPUT_ACTIVE~
• ~NGEN_ROUTING_ACTIVE~
• ~UDUNITS_ACTIVE~
• ~MPI_ACTIVE~
• ~NGEN_MPI_ACTIVE~
• ~NETCDF_ACTIVE~

I'll leave these alone, since they're all set specifically inside test/CMakeLists.txt

• NGEN_BMI_CPP_LIB_TESTS_ACTIVE
• NGEN_BMI_C_LIB_TESTS_ACTIVE
• NGEN_BMI_FORTRAN_LIB_TESTS_ACTIVE
• NGEN_BMI_PY_TESTS_ACTIVE
• NGEN_MPI_TESTS_ACTIVE
• ROUTING_PYBIND_TESTS_ACTIVE

Plus some others, e.g.

• ~ACTIVATE_PYTHON~

• ifdef WRITE_PID_FILE_FOR_GDB_SERVER

• #ifdef __APPLE__
• #ifdef __GNUC__
• #ifdef __cplusplus

• ifndef MPI_HF_SUB_CLI_FLAG

• ifndef NCEP_OPERATIONS

[PhilMiller]

~I'm going to create a separate issue for ACTIVATE_PYTHON, and call the present PR done. There's a lot more instances of that one, and I'm about done for the day.~

I'm just finishing this.