feat(datasource-replica): add replica datasource #4419

Job	Run time
Installing & Building	1m 50s
Build API Reference	1m 7s
Lint commit messages	16s
Linting & Testing (agent)	1m 47s
Linting & Testing (datasource-customizer)	1m 18s
Linting & Testing (datasource-dummy)	27s
Linting & Testing (datasource-mongoose)	1m 27s
Linting & Testing (datasource-replica)	42s
Linting & Testing (datasource-sequelize)	37s
Linting & Testing (datasource-sql)	2m 56s
Linting & Testing (datasource-toolkit)	54s
Linting & Testing (forestadmin-client)	46s
Linting & Testing (plugin-aws-s3)	38s
Linting & Testing (plugin-export-advanced)	27s
Linting & Testing (plugin-flattener)	40s
Send Coverage	10s
Release packages	0s
Publish API Reference	0s
	16m 2s

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