This MP consolidates multiple related changes together, with the goal of:
(1.) Make the service instance accessible via a cli. Useful for testing scenarios. (2.) To cut down time-to-first-fix (ttff) by: (2.1) Leveraging SUPL and other supplementary data downloaded over ordinary data connections. (2.2) Enabling network-based positioning providers to acquire fast position estimates.
In more detail:
* Added tests for daemon and cli. * Unified daemon and cli header and implementation files. * Add a command-line interface to the service. * Split up provider selection policy to rely on an interface ProviderEnumerator to ease in testing. * Trimmed down on types. * Removed connectivity API draft to prepare for simpler approach. * Refactored includes. * Added a configuration option to handle cell and wifi ID reporting. * Add a mock for a connectivity API exposed to providers and reporters. * Add units for connectivity api. * Refactor cell class into namespace radio. Fixes: 1226204, 1248973, 1281817