Implement pdf rendering (#5250)

* First PDF creation support

* Reimplement info box

* Set title and make overlay frame margins more unified

* Remove a style sheet that was never meant to be applied to Project Tree

* Update RiuDraggableOverlayFrame when changing content

* Default page layout in Preferences

* undo removal of elision

* Remove friend class assignment in cafCategoryMapper

* the required methods have been made public

* Fix up after review

* Remove spurious const on by-value return

* Fix compile errors on Linux

* Fix size adjustment of legends with plot resizing

ApplicationCode/GrpcInterface/Python/setup.py.cmake

@@ -19,4 +19,5 @@ setup(
     license=license,
     packages=['rips'],
     package_data={'rips': ['*.py', 'generated/*.py', 'PythonExamples/*.py', 'tests/*.py']}
+    install_requires=['grpcio>=1.20.0']
 )