text: Title: Add Float field to test schema
  Body: Neither [Neo4j](https://neo4j.com/docs/cypher-manual/current/syntax/values/) nor [RedisGraph](https://oss.redislabs.com/redisgraph/cypher_support/#types) support Decimal types, but Neo4j does support floats and RedisGraph 64-bit doubles, so it would be nice to add a field like that to the schema and integration test data so that we can test these types for integration tests.