Add test(s) for `IncrementCounter`/`DecrementCounter` on structured buffers to offload-test-suite

[hekota]

Add test(s) that are using structured buffers and their IncrementCounter/DecrementCounter methods to the offload-test-suite.

This change is part of the AC for this proposal https://github.com/llvm/wg-hlsl/blob/main/proposals/0022-resource-instance-analysis.md

[V-FEXrt]

Forgot to link the PR. This is closed by llvm/offload-test-suite#80