Add `Scarb.toml` docs and template generation #9028

Job	Run time
Test coverage	2m 40s
build-test-forge-e2e-nextest-archive	1m 8s
Test Cast	15m 21s
Test Cheatnet	1m 18s
Test Conversions	27s
Test Forge Runner	31s
Test Forge Scarb Plugin	17s
Test Forge / Unit and Integration Tests	17m 52s
Test Scarb Api	1m 37s
Test Shared	14s
clippy	25s
Test Building Docs	13m 27s
rustfmt	15s
scarbfmt	6s
Check typos	7s
Test Forge / E2E Tests (1)	2m 30s
Test Forge / E2E Tests (2)	3m 2s
Test Forge / E2E Tests (3)	2m 27s
Test Forge / E2E Tests (4)	2m 44s
Test Forge / E2E Tests (5)	2m 46s
Test Forge / E2E Tests (6)	2m 27s
Test Forge / E2E Tests (7)	2m 43s
Test Forge / E2E Tests (8)	3m 48s
	1h 18m 12s

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