Clean notebooks from sparqls

[altix]

1. In icos_jupyter_notebooks/as_obs_tools/icos_as_obs_tools.ipynb has a temporary fix that should be removed, just use station.getList('AS')
2. The nb icos_jupyter_notebooks/availability_tools/icos_availability_tools.ipynb
3. The nb: icos_jupyter_notebooks/icos_STILT/icos_stilt_tools.ipynb still imports from icoscp.sparql import sparqls, runsparql, but it is not used.
4. In icos_jupyter_notebooks/availability_tools/icos_availability_tools.ipynb there are several sparqls that should be removed. Some analysis is needed though.
5. icos_jupyter_notebooks/as_stat_tools/icos_as_stat_tools.ipynb has 15 sparqls that are not needed, a bit analysis is needed.
6. The RINGO files: project_jupyter_notebooks\RINGO_T1.3\ICOS_flasksampling_fossilfuel.ipynb, \RINGO_T1.3\RINGO_T1.3_flasksampling_v5.ipynb, \RINGO_T1.3\modules\README.ipynb, \RINGO_T1.3\modules\README.md mentions a sparql-script which is gone.

Other notebooks and scripts that might need a look are found in: icos_jupyter_notebooks\radiocarbon, icos_jupyter_notebooks\radiocarbon, project_jupyter_notebooks\network-view-tool\network_view.

[ukarst]

ad 6. RINGO files: The lines mentioning sparql in the notebooks and README files can be removed. Sparql queries are no longer used in these notebooks.