Camera: HIDLized camera HALs, first set

* Common camera definitions (camera.common/1.0)
  * Basic status codes, shared types
* Provider 2.4 API (camera.provider/2.4), including vendor tag APIs
  * Enumerate and acquire camera device instances
  * Mostly equivalent to legacy camera module v2.4.
* Device 1.0 API (camera.device/1.0)
  * Mostly equivalent to legacy camera HAL v1.0.
* Device 3.2 API (camera.device/3.2)
  * Mostly equivalent to legacy camera HAL v3.2.
* Metadata 3.2 API (camera.metadata/3.2)
  * Definitions for valid metadata fields for device 3.2

Only the key initial interfaces are added; default implementations are
in a later CL. Other interfaces that will likely need to be added:

* Other provider minor versions
* Other device 3.x minor versions

Test: make -j32
Bug: 30985004
Bug: 32991603
Change-Id: I1c6a9a269bf45276055707bbc58cfc50d29fa919