implemented document creation

this required a major refactoring of the object model

backend/build.gradle.kts

@@ -11,6 +11,7 @@ application{
 }
 
 dependencies{
+    implementation(project(":company"))
     implementation(project(":core"))
     implementation(project(":documents"))
     implementation(project(":legacy"))
@@ -23,7 +24,6 @@ dependencies{
     implementation("de.srsoftware:tools.optionals:1.0.0")
     implementation("de.srsoftware:tools.slf4j2syslog:1.0.1") // this provides a slf4j implementation that forwards to System.Logger
     implementation("de.srsoftware:tools.util:2.0.3")
-    implementation("org.json:json:20240303")
 }
 
 tasks.jar {