added simple realtime server and client code (over ws0

gradle.properties

@@ -2,4 +2,5 @@ kotlin.code.style=official
 kotlin.mpp.enableGranularSourceSetsMetadata=true
 kotlin.native.enableDependencyPropagation=false
 kotlin.js.generate.executable.default=false
-ktor_version=2.1.0
+ktor_version=2.1.1
+logback_version=1.2.10