Add a batch of GraphicsFuzz coverage tests

Add a batch of GraphicsFuzz coverage tests

This commit adds a batch of GraphicsFuzz coverage tests.

Components: Vulkan

New Tests:

dEQP-VK.graphicsfuzz.cov-clamp-vector-component-condition-using-matrix
dEQP-VK.graphicsfuzz.cov-color-output-undefined-in-unexecuted-branch
dEQP-VK.graphicsfuzz.cov-empty-loop-minus-one-modulo-variable-one
dEQP-VK.graphicsfuzz.cov-float-array-init-pow
dEQP-VK.graphicsfuzz.cov-fract-asin-undefined-never-used
dEQP-VK.graphicsfuzz.cov-function-fragcoord-condition-always-return
dEQP-VK.graphicsfuzz.cov-global-loop-counter-squared-comparison
dEQP-VK.graphicsfuzz.cov-isnan-asinh-clamp-always-zero
dEQP-VK.graphicsfuzz.cov-loop-dfdx-constant-divide
dEQP-VK.graphicsfuzz.cov-loop-integer-half-minus-one
dEQP-VK.graphicsfuzz.cov-min-intbitstofloat-undefined-never-used
dEQP-VK.graphicsfuzz.cov-pow-identical-value-sqrt
dEQP-VK.graphicsfuzz.cov-pow-undefined-result-condition-with-always-true
dEQP-VK.graphicsfuzz.cov-struct-float-array-mix-uniform-vectors
dEQP-VK.graphicsfuzz.cov-switch-fallthrough-variable-from-first-case

Change-Id: I239e7263068ddb6216f97c447e733cc2857fecfd