[Fixes #48] Feature: allow searching through filter parameter

[mwallschlaeger]

Description

this PR brings the --filter argument for the list function of all geonodeobjects. This can be used via geonodectl on cmdline like:

geonodectl dataset list --filter title=test

or by calling the corresponding object class like:

from geonoderest import datasets
from geonoderest.apiconf import GeonodeApiConf

# load envvars from env
gn_conf = GeonodeApiConf.from_env_vars()

gn_dshandler = datasets.GeonodeDatasetsHandler(env=gn_conf)
filtered_results = gn_dshandler.list(filter={"title": "test"})

Type of Change

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• Bug fix
• New feature
• Documentation update
• Refactoring
• Release
• Other (please describe)

Related Issue

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closes #48

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