[software] Add benchmarking script #1087

Job	Run time
check-opcodes	4s
riscv-isa-sim	5m 14s
tc-gcc	45m 50s
tc-llvm	2h 40m 7s
verilator	10m 0s
verilator-model (minpool)	2m 41s
verilator-model (mempool)	14m 53s
unit-test	1m 53s
build-apps-omp (minpool)	46s
build-apps-omp (mempool)	42s
check-bootrom	21s
build-apps-gcc (minpool)	53s
build-apps-gcc (mempool)	54s
run-apps-gcc	0s
tc-halide	22m 8s
build-apps-llvm (minpool)	1m 21s
build-apps-llvm (mempool)	1m 13s
run-apps-llvm	0s
build-apps-halide (minpool)	1m 6s
build-apps-halide (mempool)	1m 14s
run-apps-halide (minpool)	24s
run-apps-halide (mempool)	2m 44s
clean-up	3s
clean-up-compile-runs (minpool)	2s
clean-up-compile-runs (mempool)	2s
	4h 34m 35s

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