[QA] Add Message Passing System

[RicardoUsbeck]

• Based on arxiv https://arxiv.org/abs/1908.06917 please insert the QA System
• You can access it simply by adding the text of a question to https://kbqa-api.ai.wu.ac.at/ask?question=
• e.g. Name the municipality of Roberto Clemente Bridge ? https://kbqa-api.ai.wu.ac.at/ask?question=Name%20the%20municipality%20of%20Roberto%20Clemente%20Bridge%20?
• There is also a way to output intermediate results such as linked entities and relations
• Original author @svakulenk0

[RicardoUsbeck]

https://github.com/dice-group/NLIWOD/commit/73e8769cd578b4a95e85c2a96e69f16bb56a7e12

System needs renaming to QAmp

[MichaelRoeder]

Renaming should be done before deployment.