Add tuner resource inquery APIs

boolean Tuner#hasUnusedFrontend(int frontendType)
boolean Tuner#isLowestPriority(int frontendType)

Additionally, adding the following functions in
ITunerResourceManager.aidl to enable testing of the above APIs with
custom frontend resource map.

void storeFrontendResourceMap()
void clearFrontendResourceMap()
void restoreFrontendResourceMap()

Also adding dumpsys for TunerResourceManager.

Bug: 192010866
Test: android.media.tv.tuner.cts.TunerTest
Change-Id: I0b7eb6a3c13795f4101306faae0ec215d638b7cb