Delete old slices then split communities loaded from db

Use-cases, layers, clusters, timeslices, layerpairs

- extracted routes into seperate yaml file to avoid code duplication
- created additional security definition for local mode which accepts all tokens
- added endpoint to add a schema with mappings included

added use-case as field for layers

used prance to resolve the yaml file (enables file-splitting)

added global security definition to swagger.yml

added token verification stubs

added security jwtRegular to all endpoints

added options to:
- add user
- delete user
- fetch users
- authenticate with username/password

Removed all old and unused source code, including source code from old approaches

Changed deployment script: arg has to match name exactly