Dialer: Open source google dialer and more (1/5)

This is an open source variant of the well known google Dialer which gives the
ability to show nearby places and revese lookup. It uses default the Google
engine to do this. As well you have the ability to use other providers.

Providers which are currently available:

lookup/nearby places:
Google
OpenStreetMap

Reverse lookup:
Google
OpenCnam (US-only)
WhitePages (US-only)
YellowPages (US-only)
ZabaSearch (US-only)

Change-Id: I6d6686c132c37cbeb45f87d824ad7eefbabc63e6

Conflicts:
	res/values/slim_strings.xml
added ras_strings for Google Dialer