first implementation of cal.db, that

- successfully connects to db
- updated db sheme
- succeeds in listing appointments

Signed-off-by: Stephan Richter <s.richter@srsoftware.de>

de.srsoftware.cal.app/build.gradle.kts

@@ -2,6 +2,10 @@ description = "OpenCloudCal : Application"
 
 dependencies {
     implementation(project(":de.srsoftware.cal.api"))
+    implementation(project(":de.srsoftware.cal.db"))
     implementation(project(":de.srsoftware.cal.importer"))
+
+    implementation("de.srsoftware:configuration.api:1.0.0")
+    implementation("de.srsoftware:configuration.json:1.0.0")
     implementation("de.srsoftware:tools.util:1.1.1")
-}
+    implementation("com.mysql:mysql-connector-j:9.1.0")}