Add CAdvowareAkten entity and related metadata

- Introduced new entity CAdvowareAkten with fields: name, description, createdAt, modifiedAt, assignedUser, teams, vmhRumungsklage, mietinkasso, aktenzeichen, and aktennummer.
- Defined relationships for CAdvowareAkten with existing entities: CVmhRumungsklage and CMietinkasso.
- Created client definitions, layouts, and ACL for CAdvowareAkten.
- Added internationalization support for CAdvowareAkten in multiple languages.
- Updated existing entities and metadata to include references to CAdvowareAkten.

custom/Espo/Custom/Resources/i18n/en_US/CMietinkasso.json

@@ -12,7 +12,8 @@
         "anwaltskosten1Instanz": "Attorney Fees 1st Instance",
         "freigeschalteteNutzer": "Activated Users (deprecated)",
         "collaborators": "Collaborators",
-        "vmhVermietersMIK": "Landlord"
+        "vmhVermietersMIK": "Landlord",
+        "advowareAkten": "Advoware Akten"
     },
     "links": {
         "meetings": "Meetings",
@@ -26,7 +27,8 @@
         "freigeschalteteNutzer": "Activated Users (deprecated)",
         "collaborators": "Collaborators",
         "vmhVermietersMIK": "Landlord",
-        "pulse": "Pulses"
+        "pulse": "Pulses",
+        "advowareAkten": "Advoware Akten"
     },
     "labels": {
         "Create CMietinkasso": "Create Mietinkasso"