Janitor issues

* Use horizontalAdvance
* Remove unused code
* Hide some warnings from Qt code
* Remove message for _SILENCE_TR1_NAMESPACE_DEPRECATION_WARNING
* Use CMP0077 NEW
* Move roff libraries to folder Thirdparty
* avoid operator()==
* Remove cmake_minimum_required and set version to 3.15

Fwk/AppFwk/cafPdmScripting/CMakeLists.txt

@@ -1,5 +1,3 @@
-cmake_minimum_required(VERSION 3.12)
-
 project(cafPdmScripting)
 
 option(CAF_CVF_SCRIPTING "Enable CVF-data support in Scripting" OFF)

Fwk/AppFwk/cafPdmScripting/cafPdmScripting_UnitTests/CMakeLists.txt

@@ -1,5 +1,3 @@
-cmake_minimum_required(VERSION 2.8.12)
-
 project(cafPdmScripting_UnitTests)
 
 find_package(
@@ -13,10 +11,6 @@ if(MSVC AND (CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 19.11))
   # VS 2017 : Disable warnings from from gtest code, using deprecated code
   # related to TR1
   add_definitions(-D_SILENCE_TR1_NAMESPACE_DEPRECATION_WARNING)
-  message(
-    STATUS
-      "Add flag to disable warings from gtest -  _SILENCE_TR1_NAMESPACE_DEPRECATION_WARNING"
-  )
 endif()
 
 include_directories(${CMAKE_CURRENT_SOURCE_DIR} # required for gtest-all.cpp