Radar structure refactor : reading netCDF files
 Radar structure refactor : mdv file reading
Radar structure refactor : rsl file reading
Radar structure refactor : removed old tests
Radar structure refactor : adjusted other modules for new structure
BUG: test_netcdf_convert tests now pass
TST: disabled broken test
TST: fixes to get test_dealias.py to pass
TST: disabled long test in test_phase_proc.py
TST: tests now run from root directory
BUG: fixed buy when writing char arrays