Read-only view - language literal tag and fallback language

[troughc]

These issues were found in #1394. I would like some (3) updates to be made:

• 1. Add the fallback language literal tag to the read only view.

• 2. the fallback language in the read-only page should be the same as the fallback language in the Edit page.
  When I change the order of languages in settings, i am changing the fallback language choice. When I then create an event (or other entity), the read-only page does not update to reflect my new fallback language choice.
  For example, change the order in Settings from having FRENCH first to ENGLISH first (this changes the fallback language from French to English).
  The expected behaviour is that the fallback language would be English everywhere (i.e. English in Read only and in Edit view).

wrong fallback language in read only

right fallback language in edit view

[SyamBabu-M]

@troughc
Estimate:

1. Add the fallback language literal tag to the read only view pages. - 10h + 1h

2. the fallback language in the read-only page should be the same as the fallback language in the Edit page. - 4h + 1h

3. the ticketing fields in the Edit view are not displaying fallback languages and the literal tag when they are empty. - 8h
   @troughc I investigated this and it seems a bit difficult to find a good solution. I suggest separating this from this issue.

[troughc]

@SyamBabu-M I like your suggestion to separate the issue about ticketing. DONE - see #1521
I also removed that section from this ticket.