Improvement on the tutorial of running PiggyMetrics in AKS

[Matthew-Dong]

1. Move the project under Azure repo
2. Summarize changes to the original PiggyMetrics project
3. Cloud resource provision - VS Code + Extensions (Cosmos DB + AKS)
4. Development (helm.chart edit)- VS Code
5. Build and Dockerize - VS Code and extensions, e.g. Docker
6. Test - test with the endpoints
7. Update one service