Add stablehlo --> TTIR conversion for slice op (#954) #238

Job	Run time
macos-build / build (macos-latest, clang, clang++, Release, OFF)	1h 33m 46s
pre-commit / pre-commit	45s
build-and-test / build-image	11s
spdx / check-spdx-headers	4s
build-and-test / Build tt-mlir (ubuntu-latest, OFF, run)	34m 6s
build-and-test / Build tt-mlir (ubuntu-latest, ON, perf)	39m 59s
build-and-test / run-tests (n150, OFF, run, --non-zero)	2m 2s
build-and-test / run-ttrt-tests (n150, ON, perf)	10m 15s
build-and-test / run-tests (n150, ON, perf)	4m 0s
build-and-test / run-tests (n300, OFF, run, --non-zero)	2m 29s
build-and-test / run-tests (n300, ON, perf)	4m 44s
	3h 12m 21s

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