parentCustomerId: Option[String] to OutBoundUpdateCustomerGeneralData

parentCustomerId=Some(parentCustomerIdExample.value)) to connectors,
Adding Dynamic Entity Test for _links

# Conflicts:
#	obp-api/src/test/scala/code/api/v6_0_0/PasswordResetTest.scala

- Add RetailAndCorporateCustomerTest suite with 482 lines of test coverage
- Implement test cases for creating retail customers with validation of customer_type as INDIVIDUAL
- Implement test cases for creating corporate customers with optional customer_type and parent_customer_id
- Add helper methods createTestRetailCustomer and createTestCorporateCustomer for test setup
- Add authentication and authorization tests verifying 401/403 responses for missing credentials and roles
- Add test scenarios for retrieving retail and corporate customers at one bank
- Add test scenarios for customer hierarchy operations (getCustomerChildren, getCorporateCustomerSubsidiaries)
- Add test tags for API version v6_0_0 and individual endpoint tracking
- Include cleanup in afterAll to bulk delete test customers and user-customer links
- Covers CanCreateCustomer, CanCreateCustomerAtAnyBank, and CanGetCustomersAtOneBank entitlements

- Update frozen metadata cache for RestConnector_vMar2019
- Refresh test fixtures to reflect current API state
- Ensure connector tests use latest metadata snapshot

- Update invokeDynamicConnector calls to pass userId only for personal entities
- Pass None for userId when creating/updating/deleting system-level records
- Pass Some(u.userId) for personal entity operations to maintain user context
- Remove userId filter from system-level entity queries in MappedDynamicDataProvider
- Add clarifying comments explaining userId handling for personal vs system entities
- Ensures proper data isolation between personal and system-level dynamic entities

- Remove conditional userId logic that passed None for non-personal entities
- Pass Some(u.userId) consistently across all invokeDynamicConnector calls
- Update filtering strategy to rely on isPersonalEntity flag instead of userId presence
- Simplify userId parameter handling in GET, POST, and PUT operations
- Update comments to reflect new approach where personal records are filtered by userId at the connector level