Some text predicates (mostly negations) not supported by serializer

[FlorianHockmann]

#2559 added new text predicates, mostly negations of existing text predicates, but also textContainsPhrase as a completely new predicates. These added text predicates are however not supported by the JanusGraphPSerializer which is used for GraphSON and GraphBinary to serialize and deserialize JanusGraph predicates.

This means that it's not possible to use the new predicates with JanusGraph Server.

Please include configurations and logs if available.

For confirmed bugs, please report:

• Version: 1.0.0
• Storage Backend: any
• Mixed Index Backend: any
• Link to discussed bug: -
• Expected Behavior: Predicates also working via JanusGraph Server
• Current Behavior: Exception about missing support for the predicate (see below)
• Steps to Reproduce: Trying to use added text predicates with JanusGraph Server

Stack Trace (if you have one)

This happens if I try to use one of the new predicates (textNotContains in this case) via JanusGraph Server:

Caused by: org.apache.tinkerpop.shaded.jackson.databind.JsonMappingException: Could not deserialize the JSON value as required.
Nested exception: org.apache.tinkerpop.shaded.jackson.databind.JsonMappingException: Could not deserialize the JSON value as required.
Nested exception: java.lang.UnsupportedOperationException: Matched predicate {textNotContains} is not support by JanusGraphPSerializer

I serialized it from JanusGraph.Net as I wanted to add support for these new predicates there until I realized that they aren't supported server side