[Suggestion] Add possibility to fill database from extension

[lp35]

Hi!

First, thank you for Keeweb, it is a nice project!

Something I really miss with the extension is the ability to fullfill the database from the extension. For instance:

• I'm signing up to a new website
• Keepass-firefox detects a new signup form
• Keepass-firefox ask me if I want to add an entry to my keepass
• Done!

Would be really great if it can work this way. Cheers!

[PhoneixS]

I think this is a duplicate of #11