Migrating the measurement and publish workflows to GitHub Actions #27

Job	Run time
set-image	1s
dylint	2m 44s
clippy-examples (STD)	13m 25s
check (STD)	7m 4s
clippy	2m 45s
clippy-examples (WASM)	2m 30s
check (WASM)	1m 16s
fmt	2m 46s
check (RISCV)	1m 6s
spellcheck	1m 33s
examples-test	15m 51s
test	15m 0s
build (STD)	16m 34s
build (WASM)	1m 13s
docs	5m 41s
codecov	20m 39s
examples-docs	3m 38s
examples-contract-build (WASM)	25m 11s
examples-contract-build (RISCV)	4m 20s
measurements / contract-sizes	23m 10s
	2h 46m 27s

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