Succeed in create a paramEditor for each node (for the moment
they are one above the other)
Step 2 of the parametersEditor: no more one above the other
minor : max width for paramEditor
Parameters Editor: scrollview / flickable
create property editedNodesWrapper & function
Auto width of Param Editor
auto width: cleaning code
Accordion List for the ParametersEditor

Problem with the y position
Separation between the "normal" Param Editor and the "Parameters Editor" Param Editor
Reduce width & height of the scroll bar

To avoid hide & make inactive the paramEditor scrollbar
Only one scroll bar
Only one scroll bar // cleaning code
Merge branch 'dev_menu' of https://github.com/buttleofx/ButtleOFX into feature/newParametersEditor

Conflicts:
	buttleofx/MainWindow.qml
	buttleofx/gui/paramEditor/qml/ParamString.qml
add a plus button
graphical modification
Create menu of node (but do nothing with)
Merge branch 'feature/newParametersEditor' of https://github.com/buttleofx/ButtleOFX into feature/MenuQML

Conflicts:
	buttleofx/MainWindow.qml
	buttleofx/gui/paramEditor/qml/ParamEditor.qml