Button to mount / unmount a VeraCrypt container

[Leo]

@YagROM

In case you may not have noticed, you should close the Directory Opus window before you execute the VeraCrypt button commands; else you may receive a VeraCrypt error.

If you need to close any Opus folder tabs that have the drive open before dismounting it, this may be useful as part of the command:

• Close all tabs matching a path wildcard