Add methods to get or set camera parameters

This change adds new methods to set and get camera parameters.  As the
vendor may handle a parameter set request with invalid value, a set
method returns an effective value with a status code.

Bug: 138328396
Test: VTS
Change-Id: I278dad6c285fb9b341be3517cde09359da14cda6
Signed-off-by: Changyeon Jo <changyeon@google.com>