Add termination (Kündigung) functionality and related translations

- Implemented the ability to initiate terminations from Mietverhältnisse.
- Added new fields and options for terminations in both German and English language files.
- Updated metadata definitions to include relationships for terminations with Mietobjekte and Beteiligte.
- Enhanced the service layer to handle termination creation, including linking relevant entities and copying documents.
- Updated configuration timestamps for deployment.

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

@@ -8,7 +8,9 @@
         "cVmhVermietersKontaktpersonen": "Vermieter",
         "cVmhMietverhltnisesContact": "Mietverhältnisse",
         "cDokumentesvmhcontact": "Dokumente",
-        "cVmhmietobjekt2contact": "Mietobjekts"
+        "cVmhmietobjekt2contact": "Mietobjekts",
+        "cMietinkassoContact": "Rent Collection",
+        "cKuendigungContact": "Terminations"
     },
     "links": {
         "cVmhRumungsklages": "Räumungsklagen",
@@ -23,6 +25,7 @@
         "cAdressenContact": "Addresses",
         "cVmhRumungsklageContact": "Eviction Lawsuits (Portal)",
         "cMietinkassoContact": "Rent Collection",
+        "cKuendigungContact": "Terminations",
         "cBankverbindungenContact": "Bank Accounts"
     },
     "options": {