Investigate Kong as an API gateway technology

[ray-millward-tessella]

Description:
The DAaaS frontend will need to get plugins and API requests from several locations, to avoid the CORS problem we need to use an API gateway. Kong is one potential open-source solution for this. We should investigate how hard it is to set up as well as if it is suitable for a micro-frontend architecture.

Acceptance criteria:

• A proof-of-concept installation of Kong has been done to see how hard it is
• We have tested that plugins and APIs can be loaded through the gateway
• Our finding have all been documented on the wiki
• Stories have been made for integrating Kong into the DAaaS frontend

[nickbattam-tessella]

https://github.com/ral-facilities/daaas-frontend/wiki/Gateway-API