chore: remove deprecated horses, clubs, officials, and persons services

- Deleted obsolete modules related to horses, clubs, officials, and persons services, including their configurations, build files, and database provisioning scripts.
- Cleaned up associated references in the project structure (e.g., `settings.gradle.kts`).
- Removed unused database tables and Spring beans related to these domains.

Signed-off-by: Stefan Mogeritsch <stefan.mo.co@gmail.com>

core/core-utils/build.gradle.kts

@@ -34,9 +34,9 @@ kotlin {
     }
     jvmMain {
       dependencies {
-        // Removed Exposed dependencies to make this module KMP compatible
-        // implementation(libs.exposed.core)
-        // implementation(libs.exposed.jdbc)
+        implementation(libs.exposed.core)
+        implementation(libs.exposed.jdbc)
+        implementation(libs.exposed.kotlin.datetime)
       }
     }
   }