(GUI) Rename refactoring for *.pi files.
(GUI) Add .diagram rename participant. WIP
(GUI) Read file char by char to avoid EOL format issues.
(GUI) Detect and change references to "oldName.pi" in a renamed diagram.
(GUI) Apply rename refactoring on copy.
(GUI) Factorize code for text change.
(GUI) Copy participants for diagrams.
Merge branch 'renameRefactoring' into develop