EcoAccount withdraws

* adds functionality for withdraws from eco accounts in detail view of interventions and eco account as well
* adds get_surface() method to AbstractCompensation class to provide a simple getter for a sql calculation
* adds get_surface_withdraws() method to EcoAccount class to provide a simple getter for a sql calculation
* renames some routes to match coherent rout naming
* adds logic check on NewWithdrawForm
* renames templates/table directory to templates/form, since there are form-table templates inside --> more clarity
* adds new autocomplete routes to konova/urls.py for Interventions and EcoAccounts
* adds/updates translations
* adds/updates template comments
* updates requirements.txt

compensation/models.py

@@ -7,9 +7,8 @@ Created on: 17.11.20
 """
 from django.contrib.auth.models import User
 from django.contrib.gis.db import models
-from django.core.validators import MinValueValidator, MaxValueValidator
-from django.db import transaction
-from django.utils import timezone
+from django.core.validators import MinValueValidator
+from django.db.models import Sum
 from django.utils.timezone import now
 from django.utils.translation import gettext_lazy as _
 
@@ -121,6 +120,14 @@ class AbstractCompensation(BaseObject):
     class Meta:
         abstract = True
 
+    def get_surface(self) -> float:
+        """ Calculates the compensation's/account's surface
+
+        Returns:
+            sum_surface (float)
+        """
+        return self.after_states.all().aggregate(Sum("surface"))["surface__sum"]
+
 
 class Compensation(AbstractCompensation):
     """
@@ -188,6 +195,14 @@ class EcoAccount(AbstractCompensation):
     def __str__(self):
         return "{}".format(self.identifier)
 
+    def get_surface_withdraws(self) -> float:
+        """ Calculates the compensation's/account's surface
+
+        Returns:
+            sum_surface (float)
+        """
+        return self.withdraws.all().aggregate(Sum("surface"))["surface__sum"]
+
 
 class EcoAccountWithdraw(BaseResource):
     """