Add option to hide L$ balance for Snapshots with Interface showing

[AtlasLinden]

It is possible to take a snapshot with the UI showing using the Interface checkbox:

Provide a separate checkbox to hide the L$ amount from snapshots. (Checkbox can only be enabled when Interface is checked)
For example (image from FS):

Test Plan

Verify that L$ amount can be hidden/shown from the snapshot via a "hide L$" checkbox

[Dan-Linden]

#3705 has been created for: (For Product to conciser: Add an option to hide the $L balance all the time, for the benefit of streamers who don't want to show this info.)