fix: Set locale in tests to be able to run locally. Remove logging dependency fixed versions in parent pom.xml to prevent conflicts with spring boot. Update license headers. Update urm diagrams.

virtual-proxy/etc/virtual-proxy.urm.puml

@@ -0,0 +1,26 @@
+@startuml
+package com.iluwatar.virtual.proxy {
+  class App {
+    + App()
+    + main(args : String[]) {static}
+  }
+  interface ExpensiveObject {
+    + process() {abstract}
+  }
+  class RealVideoObject {
+    - LOGGER : Logger {static}
+    + RealVideoObject()
+    - heavyInitialConfiguration()
+    + process()
+  }
+  class VideoObjectProxy {
+    - realVideoObject : RealVideoObject
+    + VideoObjectProxy()
+    + getRealVideoObject() : RealVideoObject
+    + process()
+  }
+}
+VideoObjectProxy -->  "-realVideoObject" RealVideoObject
+RealVideoObject ..|> ExpensiveObject 
+VideoObjectProxy ..|> ExpensiveObject 
+@enduml