* adds Ema model (basically Compensation inherited)
* adds index view for EMAs
* fixes drop-down link bug for menu 'More' in navbar
* refactors some more forms to use process_request()
* adds modified attribute to BaseResource for easy last_modified check
* adds setting of modified attribute in all places where UserAction.EDITED is added to log
* adds EMA_ACCOUNT_IDENTIFIER_LENGTH and EMA_ACCOUNT_IDENTIFIER_TEMPLATE to ema/settings.py
* adds EmaAdmin to ema/admin.py
* fixes wrong title in intervention detail view html for revocations
* adds support for subtitle variable to BaseTable and generic_index.html
* drops next_version attribute from models
* adds/updates translations
* adds default ordering for UserActionLogEntry
* removes extra ordering in log modal rendering
* adds compensation detail view (WIP)
* adds includes dir for related objects, similar to interventions
* adds functionality for
* adding/removing before_states
* adding/removing after_states
* adding/removing deadlines
* adding/removing documents
* refactors usage of BaseModalForm
* holds now process_request() in base class for generic usage anywhere
* adds __str__() method for some models
* compensation__action is blank=True now
* renamed tooltips
* adds new routes for state/deadline/document handling inside of compensation/urls.py
* adds precalculation of before/after_states for detail view, so users will see directly if there are missing states
* removes unnecessary link for intervention detail payment
* adds missing tooltips for check and record icon on detail views
* refactors DeadlineTypeEnum into DeadlineType in konova/models.py, just as the django 3.x documentation suggests for model enumerations
* UuidModel id field is not editable anymore in the admin interface
* adds/updates translations
* refactors base attributes created and deleted into UserActionLogEntry foreign keys
* refactors all related queries and process logic
* fixes binding_on into binding_date in intervention/detail/view.html
* adds basic __str__ for some models
*
* adds UserActionLogEntry model to user/models.py
* wraps user and timestamp info
* can be extended for more information in the future
* refactors all filtering and accessing on values
* adds (WIP) detail view for interventions
* renames typo in conservations_file_number to conservation_file_number
* adds simple has_access check for intervention objects for given users
* renames occurences of "Registered" to "Recorded" (verzeichnen)
* adds an informing message for detail view of intervention objects which are not editable for a user
* adds GeometryAdmin
* adds fallback DEFAULT_SRID for Geometry model
* adds translations
* adds user access relation to certain models
* adds pagination to tables
* adds checked_on/_by attributes to intervention model
* adds custom column rendering for checked and registered columns
* adds first simple index filtering of default interventions for user
* adds translations
