chore(examples): add examples #1303

Job	Run time
ESLint	23s
Rustfmt	8s
Jco Build	1m 55s
WASI Test Generation	3m 49s
Test Workspaces	20s
Jco Test Suite (ubuntu-latest, 18.x)	3m 49s
Jco Test Suite (ubuntu-latest, 20.x)	2m 54s
Jco Test Suite (ubuntu-latest, latest)	2m 42s
Jco Test Suite (windows-latest, 20.x)	5m 2s
Jco Test Suite (macos-latest, latest)	3m 12s
Jco Deno WASI Conformance Tests	1m 32s
Jco Node.js WASI Conformance Tests (ubuntu-latest, 18.x)	4m 5s
Jco Node.js WASI Conformance Tests (ubuntu-latest, 20.x)	2m 3s
Jco Node.js WASI Conformance Tests (ubuntu-latest, latest)	1m 59s
Jco Node.js WASI Conformance Tests (windows-latest, latest)	3m 45s
Jco Node.js WASI Conformance Tests (macos-latest, latest)	3m 27s
	41m 5s

Provide feedback