Add Module Composer API #1485

Job	Run time
Build Element Web	2m 19s
Run Tests [Chrome] 2/4	12m 3s
Run Tests [Chrome] 3/4	11m 19s
Run Tests [Chrome] 1/4	14m 36s
Run Tests [Chrome] 4/4	17m 13s
Prepare Element Desktop / Prepare	33s
Downstream Playwright tests [element-modules]	-1s
Desktop macOS	0s
Desktop Linux (static, amd64, false) / Build Linux amd64 SQLCipher static	7m 10s
Desktop Windows	0s
Desktop Linux (static, amd64, false) / Test Linux amd64 SQLCipher static / Test linux-amd64-sqlcipher-static	2m 14s
end-to-end-tests	44s
	1h 8m 10s

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