Reorganise ropp_io_write routines

[Huw Lewis]

With lack of support for text files, need to consolidate/tidy ropp_io_write code for netCDF. This should include use of additional parameters (e.g. optional output_precision argument) in call to ropp_io_write (and perhaps as command line option for ropp2ropp tool.

[(none)]

Milestone 3.0 deleted

[Huw Lewis]

Changes [2014], [2015], [2016] in development branch address this ticket.

1) New text2ropp tool Maintains ability to read/write between ROPP format text and ROPP format netcdf. Usage:

text2ropp INFILE -o NCDF_OUT
text2ropp INFILE -t TEXT_OUT

The tool may not be included in the distribution, but is useful for internal testing etc.

2) text2ropp test New test t_text2ropp in tests/ directory (not one of default tests run with 'make test', so all tests should 'PASS' when running 'make test' - no longer differences due to output precision).

3) Remove text functionality from ropp2ropp

4) Remove text test from t_ropp2ropp

5) Consolidate ropp_io_read and ropp_io_write routines.

ropp_io_read now replaces functionality of ropp_io_read and ropp_io_read_ncdf

ropp_io_write now replaces functionality of ropp_io_write and ropp_io_write_ncdf

6) Added 'output_precision' as optional subroutine call argument for ropp_io_write, so users can specify if data in output files are written with 'float' (default) or 'double' precision.

Ticket closed - developments will be integrated into ROPP-3 distribution when branch is merged for release.