Export schema from designer

Signed-off-by: Bimal Yashodha <kb.yashodha@gmail.com>
Test for exporting functionality

Signed-off-by: Bimal Yashodha <kb.yashodha@gmail.com>
Merge pull request #1262 from kb-yashodha/export

Export schema from designer
Translated using Weblate (Azerbaijani)

Currently translated at 41.5% (1178 of 2834)
Merge remote-tracking branch 'origin/master'
Remove extra space

Signed-off-by: Bimal Yashodha <kb.yashodha@gmail.com>
Merge pull request #1263 from kb-yashodha/ut

Unit tests
Update po files
Translated using Weblate (Greek)

Currently translated at 100.0% (2903 of 2903)