Add scrypto toolchain install shell scripts #14144

Job	Run time
Run SBOR integration tests	1m 42s
Run SBOR unit tests	1m 40s
Check code format	50s
Run Scrypto compiler tests	29m 21s
Run Scrypto derive tests	2m 46s
Run Scrypto tests	9m 20s
Run Radix Engine benchmarks	27m 38s
Run Radix Engine build (ubuntu-16-cores-selfhosted)	21m 25s
Run Radix Engine tests (no_std)	14m 32s
Run Radix Engine tests (release)	14m 24s
Run Radix Engine tests	18m 39s
Run Radix Engine Toolkit tests	4m 16s
Run Scrypto examples	15m 43s
Check Scrypto Stubs	11m 31s
Run cargo check (ubuntu-16-cores-selfhosted)	4m 13s
Run determinism test	14m 14s
Run cargo check with post run db check (ubuntu-16-cores-selfhosted)	4m 35s
Run CLI tests (ubuntu-16-cores-selfhosted)	12m 36s
Run CLI tests (scrypto) (ubuntu-16-cores-selfhosted)	11m 12s
Run CLI tests (scrypto coverage)	11m 10s
Run CLI tests (windows-16-cores-selfhosted)	15m 3s
Run CLI tests (scrypto) (windows-16-cores-selfhosted)	16m 0s
Run CLI tests (scrypto) (macos-latest)	13m 59s
Run Radix Engine common benchmarks	2m 53s
Run transaction tests	2m 54s
Run transaction scenarios	5m 58s
phylum-analyze / Analyze dependencies with Phylum	37s
	4h 49m 11s

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