refactor: set up monorepo #1524

Job	Run time
Install on Node.js v18	41s
Install on Node.js v20	45s
Audit on Node.js v18	16s
Test (Unit) on Node.js v18	1m 17s
Audit on Node.js v20	11s
Test (Integration) on Node.js v18	10m 43s
Lint on Node.js v18	59s
Test (Unit) on Node.js v20	1m 1s
Test (Integration) on Node.js v20	10m 33s
Lint on Node.js v20	53s
Test (Integration) on Node.js v18 with L3	12m 17s
Test (Integration) on Node.js v20 with L3	12m 28s
Test (Integration) on Node.js v18 with L3 with custom gas token (16 decimals)	12m 35s
Test (Integration) on Node.js v20 with L3 with custom gas token (16 decimals)	12m 30s
Test (Integration) on Node.js v18 with L3 with custom gas token (18 decimals)	12m 38s
Test (Integration) on Node.js v20 with L3 with custom gas token (18 decimals)	12m 34s
Test (Integration) on Node.js v18 with L3 with custom gas token (20 decimals)	12m 27s
Test (Integration) on Node.js v20 with L3 with custom gas token (20 decimals)	12m 32s
	2h 7m 20s

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