* adds parcel district column for all major data objects
* adds warning about intervention-revocation on index view of compensations
* adds warning about intervention-revocation on detail view of related compensations
* adds log details for adding/removing of compensations for intervention
* adds handy restore-deleted function for admin backend for alls BaseObject derivatives
* adds/updates translations
* adds support for payment adding/deleting to intervention log
* adds support for deduction adding/deleting to intervention/ecoaccount log
* improves code snippets
* drops add_deduction() methods for ecoaccount and intervention in favor of simpler creation in NewDeductionModalForm
* adds messages
* adds/updates translations
* renames model ResponsibilityData into Responsibility
* renames model LegalData into Legal
* moves form->object saving logic into model
* refactors NewDocumentForm into special types for intervention, compensation, eco account and ema
*
* implements 5) "Add 'Maßnahmentyp' for KOMs "
* prepares model and form fields as mixins for easy extension to eco accounts and emas (possibly in the future?)
* adds NewEmaForm and EditEmaForm
* refactors ResponsibilityData related form fields into reusable mixin CompensationResponsibleFormMixin
* used in NewEcoAccountForm and NewEmaForm for easier maintaining and reducing amount of code
* refactors templates /xy/new/view.html into /xy/form/view.html since the same template file is used for new and edit forms
* 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
* adds NewEcoAccountForm
* refactors NewCompensationForm into AbstractCompensationForm so main fields can be reused again
* fixes template bug in account detail view where the amount of deductions has been displayed instead of the available rest
* refactors _generate_new_identifier() into generate_new_identifier()
* refactors get_available_rest() into returning both, the total and relative amount
* improves saving of SimpleGeometryForm()
* adds/updates translations
* adds NewCompensationForm content and functionality
* renames CODELIST_COMPENSATION_COMBINATION_ID into CODELIST_COMPENSATION_FUNDING_ID for more clarity
* reorganizes compensation forms into compensation/forms/forms.py and forms/modalForms.py
* adds new compensation html template in compensation/templates/compensation/new
* adds new default message template in message_templates.py: IDENTIFIER_REPLACED
* adds/updates translations
