Add sqlite

Hi,
This is sqlite.el a package which:

- I have not done. It's written by https://github.com/cnngimenez . I tried to contact him but he's not answering. The code is licensed as GPL by the author.  If he claims the maintainer role of the package I'll be happy to transfer the ownership of the repo.
- Here's the package https://github.com/kidd/sqlite.el . which is a copypaste of http://www.emacswiki.org/emacs/sqlite.el .

- The package built fine and installed fine.

- I just corrected a few style issues, and namespaced one function that didn't have sqlite- as prefix.

- The code is not amazing but it works. When the author acks, I can start improving it.

- I'd like it to be in melpa because another package I'm writting uses it.  ( https://github.com/areina/helm-dash )

Thanks!