Multiple PIs not supported; bad naming of PI-related props

[mirzov]

There are multiple ICOS stations with more than one PI. The object returned from e.g. station.get('CMN') does not reflect that. Additionally, it appears that the object representing the station has properties "firstName", "lastName" and "email", which clearly does not make sense. There should be property called "pis", with an array of objects representing people as the value.

Also, there is no reason for the "uri" property to be an array.

[claudiodonofrio]

with update to pylib 0.1.15 all metadata is available as provided from ICOS data portal.

[mirzov]

Just tested pylib_examples/ex2_station.ipynb notebook with pylib version 0.1.15. All the problems reported in this issue are still present.

[claudiodonofrio]

this is solved by using the icoscp core - library, but should be discussed if it needs to be implemented into the icoscp pylib. issue is going to be reassigned to @ZogopZ