Implement the migration plan to streamline migration process for multiple source tables.

**Is your feature request related to a problem? Please describe.**
Instead of migrating tables one by one, which can be time-consuming and prone errors, the migration plan allows to migrate multiple tables in one shot.

**Describe the solution you'd like**
This feature works by allowing customers to select tables they want to migrate from the source. Once selected, these tables are added to a migration plan. The migration plan executes the migration for all tables in the plan in a single operations. This not only saves time but also ensures consistency and integrity of the data being migrated.

**Additional context**
Run the migration plan: `--state run --use-migration-plan file://migration-plan.json`
Stop the migration plan: `--state request-stop --use-migration-plan file://migration-plan.json`
Destroy migration plan: `--state cleanup --use-migration-plan file://migration-plan.json`

`{"migrationPlan": {
"name": "MidSizeMigrationPlan"
"sources": ["ks1.table1", "ks2.table2", "ks1.table2"]
"commandLine": "--tiles 8 ...."
}}`