feat: use fabric8 client json mapper by default (#1382)

Also remove constants to avoid mismatched configurations

Co-authored-by: Chris Laprun <[email protected]>

Author: csviri

operator-framework-core/src/main/java/io/javaoperatorsdk/operator/api/config/BaseConfigurationService.java

@@ -21,6 +21,10 @@ public BaseConfigurationService(Version version, Cloner cloner, ObjectMapper map
     super(version, cloner, mapper);
   }
 
+  public BaseConfigurationService(Version version, Cloner cloner) {
+    super(version, cloner);
+  }
+
   public BaseConfigurationService() {
     this(Utils.loadFromProperties());
   }