Snap: Make developer menu more accessible

 * Not all devices have red eye reduction, which made it
   impossible to enable advanced options. Move the toggle
   to max brightness option which is present in all devices.
 * Allow enabling advanced options through camcorder settings.
 * Move hardcoded strings to cm_strings for translations.
 * Close menus when developer mode is toggled so we can see
   the extra options when the menu is reopened.
 * Decrease taps to 7, matching Settings tap-to-enable.
 * Properly reset tap counter.

Change-Id: Iac39b9309388b92bf75a49a6091b483b13bd9154
3 files changed