Add scrypto toolchain install shell scripts #14142

Job	Run time
Run cargo check with post run db check (ubuntu-16-cores-selfhosted)	4m 27s
Check code format	38s
Run determinism test	14m 3s
Run cargo check (ubuntu-16-cores-selfhosted)	4m 25s
Run CLI tests (ubuntu-16-cores-selfhosted)	12m 32s
Run CLI tests (windows-16-cores-selfhosted)	15m 16s
Run CLI tests (scrypto) (ubuntu-16-cores-selfhosted)	10m 56s
Run Radix Engine common benchmarks	2m 49s
Run CLI tests (scrypto) (windows-16-cores-selfhosted)	17m 19s
Run CLI tests (scrypto coverage)	10m 51s
Run CLI tests (scrypto) (macos-latest)	15m 58s
Run Radix Engine benchmarks	27m 38s
Run Radix Engine build (ubuntu-16-cores-selfhosted)	21m 24s
Run Radix Engine tests (no_std)	14m 27s
Run Radix Engine tests (release)	14m 38s
Run Radix Engine tests	18m 40s
Run Radix Engine Toolkit tests	4m 19s
Run transaction tests	2m 51s
Run transaction scenarios	5m 38s
Run SBOR integration tests	1m 44s
Run SBOR unit tests	1m 31s
Run Scrypto compiler tests	28m 36s
Run Scrypto examples	15m 50s
Run Scrypto derive tests	2m 47s
Check Scrypto Stubs	11m 28s
Run Scrypto tests	9m 12s
phylum-analyze / Analyze dependencies with Phylum	40s
	4h 50m 37s

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