database: create database and tables

this patch:
- adds sqlite.swift to dependencies
- creates database
- creates tables
- adds basics queries

Change-Id: I178097aebaa62d73886132ee7a86bb4a9734d25b
Reviewed-by: Andreas Traczyk <andreas.traczyk@savoirfairelinux.com>
12 files changed
tree: 025825470438052b5f8d6caa8eeb54e117a50629
  1. Ring/
  2. .gitattributes
  3. .gitignore
  4. .gitreview
  5. compile-ios.sh
  6. COPYING