Add scrypto toolchain install shell scripts #14137

Job	Run time
Run cargo check with post run db check (ubuntu-16-cores-selfhosted)	4m 30s
Run determinism test	14m 16s
Run cargo check (ubuntu-16-cores-selfhosted)	4m 29s
Check code format	43s
Run CLI tests (ubuntu-16-cores-selfhosted)	12m 35s
Run CLI tests (scrypto) (ubuntu-16-cores-selfhosted)	11m 6s
Run CLI tests (windows-16-cores-selfhosted)	13m 35s
Run CLI tests (scrypto coverage)	10m 58s
Run Radix Engine common benchmarks	2m 50s
Run CLI tests (scrypto) (windows-16-cores-selfhosted)	13m 34s
Run CLI tests (scrypto) (macos-latest)	15m 23s
Run Radix Engine benchmarks	15m 22s
Run Radix Engine tests (no_std)	14m 34s
Run Radix Engine build (ubuntu-16-cores-selfhosted)	15m 19s
Run Radix Engine tests (release)	14m 44s
Run Radix Engine tests	15m 26s
Run Radix Engine Toolkit tests	4m 24s
Run transaction tests	2m 56s
Run transaction scenarios	5m 37s
Run SBOR integration tests	1m 45s
Run SBOR unit tests	1m 28s
Run Scrypto compiler tests	15m 22s
Run Scrypto derive tests	2m 48s
Run Scrypto examples	15m 20s
Check Scrypto Stubs	11m 27s
Run Scrypto tests	9m 27s
phylum-analyze / Analyze dependencies with Phylum	36s
	4h 10m 34s

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