API for webDO3SE service has been built

The WebDO3SE service needs a special API.

1) The 'metadata' part

https://zam2061.zam.kfa-juelich.de/api/stationmeta/EANVAC&format=webdo3se

should return:

• station_lat
• station_lon
• station_alt
• station_climatic_zone

2) The 'timeseries' part

https://zam2061.zam.kfa-juelich.de/api/timeseries/station_code=EANVAC&format=webdo3se

should return the time series IDs of the given station related to the following variables:

• temp
• humidity
• u
• v
• totprecip
• press
• irradiance
• o3

3) The 'data' part

https://zam2061.zam.kfa-juelich.de/api/data/id/<id>&daterange=[yyyy-mm-dd%20hh:MM,yyyy-mm-dd%20hh:MM]

should return all (hourly) data of the given timeseries, that falls into the given timerange.