Use valley-floor altitude filter in emep-config

[heikoklein]

Is your feature request related to a problem? Please describe.
The emep-reporting config currently uses a list of stations to exclude, which is based on a relative altitude filter of 500m. The updated config should use a valley-floor filter with default options.

Describe the solution you would like to see

• For EBAS: the height_ignore_ebas list needs to be updated to the stations from the valley-floor filter
• For EEA: When the pyaro-based EEA reader is implemented (see Use EEAReader in emep config #1452 ), the dynamic valley-floor filter should be configured as pyaro-filter

Original requestor: @mifads

[thorbjoernl]

Blocked by #1452