Add CMietinkasso entity and localization support

- Introduced a new entity "CMietinkasso" with its metadata definitions, including fields, links, and indexes.
- Added controller for CMietinkasso to handle business logic.
- Created localization files for CMietinkasso in multiple languages (e.g., English, German, Spanish, etc.) to support internationalization.
- Updated global JSON files to include references to the new entity.
- Modified configuration files to integrate CMietinkasso into the application structure.

custom/Espo/Custom/Resources/metadata/scopes/CMietinkasso.json

@@ -0,0 +1,23 @@
+{
+    "entity": true,
+    "layouts": true,
+    "tab": true,
+    "acl": true,
+    "aclPortal": true,
+    "aclPortalLevelList": [
+        "all",
+        "account",
+        "contact",
+        "own",
+        "no"
+    ],
+    "customizable": true,
+    "importable": true,
+    "notifications": true,
+    "stream": false,
+    "disabled": false,
+    "type": "BasePlus",
+    "module": "Custom",
+    "object": true,
+    "isCustom": true
+}