[survey_accounts] Translate survey accounts

[SKADE2303]

This PR is responsible for translating the module survey_accounts to different languages. Currently only 'Hindi' language is supported but other languages can be added as required.

Testing instructions (if applicable)

1. Run 'make dev' to load changes
2. Change language_preference to Hindi in my_preferences Tab
3. Go to survey_accounts tab to see translated web page.

[racostas]

@SKADE2303 please address comments.

@christinerogers

[adamdaudrich]

Spanish version is missing a field string and not translated on others

[adamdaudrich]

Is this also meant to be translated ?

[shonibare]

@adamdaudrich this PR is mainly hindi translation.

[GeorgeMurad]

form_addSurvey.tpl is not translated, is it?

[GeorgeMurad]

The following sentences need to be translated:

[shonibare]

@GeorgeMurad ready for another test round

[GeorgeMurad]

When I am clicking on the Email Survey I am geting the English message again: