User should be able to add a new Sense to the Lexeme.
When adding a new Sense, user should be able to specify a gloss of a new sense in at least one language.
- At the end of Senses section of the Lexeme there is a button to add a new Sense.
- The button opens a form to enter gloss(es)
- One saved, a new sense, including just specified glosses is displayed at the end of the Sense list
- When the lexeme page is reloaded, changes are gone.