Camera: Initial support for vendor tag caches

Vendor tag cache will be used alternatively to the regular
Vendor tag descriptor. The caches can support multiple vendor
tag providers at the same time. The native metadata along with
the requests/results/characteristics will store vendor specific
information that will be used to indentify the respective
descriptor.

Bug: 34275821
Test: Complete Camera/Camera2 CTS tests
Change-Id: I50b7cf9aa5575944fde7673a1728869690b2ce0d