GraphQL Resolver Trace Names Don't Include Path

[NOTE]: # ( ^^ Provide a general summary of the issue in the title above. ^^ )

**Description**

GraphQLResolverTrace does not take field path into account, only field name.

**Expected Behavior**

https://docs.newrelic.com/docs/apm/agents/python-agent/supported-features/python-graphQL#field-resolver-spans
