[Feature Request]: Add support for Neo4J to Spanner Graph data migration

[yogeshtewari]

Related Template(s)

sourcedb-to-spanner

What feature(s) are you requesting?

Add support for migrating data from a Neo4j graph database to Spanner Graph tables (schemaless).
A PR for adding schema migration support in SMT (Spanner Migration Tool) is already submitted.
GoogleCloudPlatform/spanner-migration-tool#1263

[chamikaramj]

PR is under review.