Datbrowser tab close

[dylanmcreynolds]

Two tabs in the databrowser are created with with closable = false.

Xi-cam.gui/xicam/gui/widgets/dataresourcebrowser.py

Line 307 in fafd6d5

self.addBrowser(DataBrowser(LocalFileSystemTree()), "Local", closable=False)

This prevents the close button from appearing on them. However, there is still a right-click menu on the tabs with a close option. The option does not do anything, so this is a pretty low-priority issue.