Add quantization coupling test

Quantization coupling test is ran only on models that contain only one
operator and at least one of its inputs has a type of
TENSOR_QUANT8_ASYMM. The test verifies that a model with all the
operands converted to TENSOR_QUANT8_ASYMM_SIGNED will produce the same
result (OK/SKIPPED/FAILED).

Bug: 137828994
Test: VtsHalNeuralNetworksV1_3TargetTest --gtest_filter="*QuantizationCouplingTest*"
Change-Id: I5a2e09b2b1bd790e7e37dde133554e516155a34d
Merged-In: I5a2e09b2b1bd790e7e37dde133554e516155a34d
(cherry picked from commit c88f4c60)