9172 Remove dependency on QtScript

* #9172 Update json encoding/decoding to avoid QtScript
* Janitor: remove unused debug code
* Janitor: minor cleanup
* Remove dependencies to Qt Script

Co-authored-by: Magne Sjaastad <magne.sjaastad@ceetronsolutions.com>

ApplicationExeCode/CMakeLists.txt

@@ -30,7 +30,6 @@ if(Qt5Core_FOUND)
                Gui
                OpenGL
                Network
-               Script
                Widgets
                Xml
                Concurrent
@@ -43,7 +42,6 @@ if(Qt5Core_FOUND)
       Qt5::Gui
       Qt5::Network
       Qt5::OpenGL
-      Qt5::Script
       Qt5::Widgets
       Qt5::Xml
       Qt5::Concurrent