JDBC connectors integrated to use Glue Connection properties

[akuzin1]

Description of changes:
Added functionality to JDBC connectors where properties default_connection_string and secret_name can be used to supplement connection properties. Aligns with Glue Connection property implementation.

Example object:

"AthenaProperties": {
  "driverProperties": {
    "default_connection_string": "jdbc:mysql://mysql-test-cluster.com:3306/test",
    "secret_name": "test-secret" // (Optional) default: ""
  },
  "connectorProperties": {
    "spill_bucket": "athena-spill-bucket",
    "spill_prefix": "athena-spill-prefix",
    "disable_spill_encryption": "true", // (Optional) default: false
    "kms_key_id": "some-kms-key-id" // (Optional) default ""
    "spill_put_request_headers": "{\"x-amz-server-side-encryption\" : \"AES256\"}" // Optional
  }
}

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