ENH: Add sample-management code from GEOMAR

.gitignore

...caosdb-webui/build.properties.d/50.sample-management.conf

...server/caosdb-webui/src/ext/js/ext_bis_samplemanagemet.js

...server/caosdb-webui/src/ext/js/ext_bis_stockmanagement.js

...anagement-custom/caosdb-server/scripting/bin/bis_utils.py

...om/caosdb-server/scripting/bin/crawl_sample_data_async.py

...ustom/caosdb-server/scripting/bin/export_container_csv.py

...t-custom/caosdb-server/scripting/bin/export_sample_csv.py

...om/caosdb-server/scripting/bin/register_new_containers.py

...ustom/caosdb-server/scripting/bin/register_new_samples.py

...m/caosdb-server/scripting/bin/register_sample_template.py

...t-custom/caosdb-server/scripting/bin/update_containers.py

...tom/caosdb-server/scripting/bin/upload_sample_template.py

...ent-custom/caosdb-server/scripting/home/identifiables.yml