Added scripts to read polcoms gcoms files (physics and ersem) to generate boundary conditions.
small bug clearing
Merge branch 'dev' of gitlab.ecosystem-modelling.pml.ac.uk:pica/fvcom-toolbox into riqui
Finished adding the ability to restrict the data extraction at read time of all possible dimensions and combinations of them (i.e. restrict time as well as nodes and levels). The restrictions can be single values or arrays. The indices extracted are also part of the output which now includes two variables instead of one.
There were other small bug corrections and the printouts to screen have been cleaned and organised.

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Addition of scripts to do surface plots of velocity using Matlab mapping tool. Added similar script for tracer variables (on nodes) to use Matlab Mapping toolbox. Idem for vector plots.
updated read_netCDF_FVCOM to handdle multiple restrictive dimensions
Merged dev branch with riqui branch
Merge branch 'riqui' into dev