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-do-while-negative-iterator-nested-loops-increment-array-element
dEQP-VK.graphicsfuzz.cov-fragcoord-conditions-never-return-index-array-using-uniform
dEQP-VK.graphicsfuzz.cov-function-loop-condition-uniform-shift-right
dEQP-VK.graphicsfuzz.cov-function-nested-loops-break-early-never-discard
dEQP-VK.graphicsfuzz.cov-function-two-loops-limit-using-arguments-array-element-copies
dEQP-VK.graphicsfuzz.cov-global-loop-counter-set-array-element-once-index-using-findmsb
dEQP-VK.graphicsfuzz.cov-integer-minus-one-increased-before-indexing-array
dEQP-VK.graphicsfuzz.cov-loop-array-element-copy-index-clamp-sign
dEQP-VK.graphicsfuzz.cov-loop-start-from-one-switch-case-never-executed
dEQP-VK.graphicsfuzz.cov-loop-two-iterators-increment-array-empty-do-while
dEQP-VK.graphicsfuzz.cov-nested-functions-compare-fragcood-length-zero-vector
dEQP-VK.graphicsfuzz.cov-nested-loops-decrease-vector-component-by-matrix-element-global-loop-counter
dEQP-VK.graphicsfuzz.cov-nested-loops-global-counter-func-set-struct-field
dEQP-VK.graphicsfuzz.cov-repeating-conditions-fract-unused

Change-Id: I6e6377a60a134b59d3afd40015d282821b429a2a