Changes for port snapping defect

updated the port snapping region
changed the cursor to select on mouse leave event
Revert "Changes for port snapping defect"

This reverts commit 9571863af61aadaa60c3049ca9ec52c3674513d7.
Revert "Revert "Changes for port snapping defect""

This reverts commit 7f6a01db48f88fd5ec67773c914150bf3970e4af.
Fix for port snapping defect

Fix for port snapping defect
Merge pull request #3456 from Benglin/master

Asynchronously call "RunExpression" in "WorkspaceModel.Modified"
Merge pull request #3438 from ramramps/Port-snapping-defect

MAGN-1429 Need snapping in inputs