Version 5.12 Updates

Upcoming Version 5.12.1

At ECMWF:
- Installed 2021-06-17
- Built with Magics 4.8.2
- Built with ecCodes 2.22.1
- Built with ODC version 1.3.0
- Includes version 1.7.2 of the Python interface
- Includes MetZoom beta 0.9.2

Fixes:

fixed issue where a Geopoints variable created via the create_geo() function with an elevation column did not list 'elevation' as one of its columns, nor did it write the elevation column to disk
fixed issue where the Geopoints Examiner only showed one station id in the stnid column
fixed issue where the setting 'Order' to 'Sorted' in the :func:`read` command did not work properly with fields of daily climatologies
fixed issue where the :ref:`Symbol Plotting <msymb_icon>` icon/function did not honour symbol_text_blanking in 'advanced' mode (fix is in Magics 4.8.2)
allow environment variable METVIEW_MARS_CONFIG_POSTFIX to specify different config files for testing different MARS configurations

At ECMWF:
- Installed 2021-05-19
- Built with Magics 4.8.0
- Built with ecCodes 2.22.0
- Built with ODC version 1.3.0
- Includes version 1.7.2 of the Python interface
- Includes MetZoom beta 0.9.2

Documentation:

Cross Section:

allow the plotting of horizontal wind as arrows/flags along transect plane via the setting:
```
wind_unprojected = "on"
```
See new gallery example :ref:`here <gallery_cross_section_wind_unprojected>`

Plotting:

new option in the PNG and PDF output drivers: output_font_scale - takes a floating point number, default=1. To double the size of all text generated in the plots, for example, set it to 2.0 in the call to setoutput, or from the GUI.

Regrid:

new interpolation methods and slight renaming of parameters - see :ref:`Regrid <regrid_icon>`
now accepts NetCDF files as input; will accept 'simple' grids in NetCDF files at least, we have not tried all types!

Thermo Data: