Performance testing framework

[JoeBatt1989]

Performance testing framework needs creating which covers the following:

• [x] POC for DICOM and RabbitMessages
• [ ] #133
• [ ] #134
• [ ] #135
• [x] #136
• [ ] #137
• [x] #138
• [x] #139
• [ ] #140
• [ ] #141

Initial thoughts on tech stack are:

• k6 for managing throughput https://k6.io/
• Prometheus and Grafana for log collection and visualisation of results because the performance of the systems are async
• For sending storescu to IG https://github.com/knopkem/dicom-dimse-native

[RemakingEden]

Initial POC has been created and is uploaded here https://github.com/RemakingEden/k6-with-rabbit-and-dicom.