* adds new app to project
* adds relation between User model and new APIUserToken model
* adds first implementation for GET of intervention
* adds basic code layout for future extension by having new versions
* adds public report rendering for intervention model
* adds new routes for report
* adds new public_base.html and public_navbar.html
* adds lookup table for zoom levels for lanis link generating
* moves qr code generating into utils/generators.py
* adds EditEcoAccountForm
* adds placeholders for some form fields
* changes comment card in detail view into rlp-grayish
* adds eco account detail view comment box
* removes unnecessary loading of dal scripts in view.html
* refactors generated identifier for data objects (10 digits to 6 uppercase letter-digit combination)
* improves generate_random_string() method by adding more options for generation of strings
* adds/updates translations
