First browser tests
browser fixes
bug fix: missing call to parent constructor

If the QObject constructor is not called, QML can't recognize the object.
Little changes
"fileType" instead of "type" to know if it's a folder
openUrlExternally(folder ... to know the real path of the file
IMages of images file are visible
Improve the fileModelBrowser
create a fileName,
create isSelected ...
First test to load files according to a filter
Fix for the graph : hotspot problem solved
Improvement for the name Filter
Drag and drop of a node over a connection is now efficient
Comment to explain the hack
Use of os.path.splitext()
Images are now ok with Windows and Linux
The filter is working
Cleaning of the last commit
First try for the zoom : detection of the mouse wheel, and first interaction with nodes
during onWheel, the size of the nodes changes + Fix for the connections
next : Find a mathematical rule to deplace the nodes toward the center of the screen during the zoom
Something that looks like a zoom/dezoom
But I understood that it's the wrong way to do it, i'm looking for a way to take the "repere" into consideration
New way to zoom/dezoom. Not entirely functional : I need to calculate the bounderies to avoid bugs.
Fix for the position of the clips during the dezoom
next time -> take mouse position into consideration and calculate boundaries