Kore pgsql python module example.
This application requires kore to be built with PYTHON=1 PGSQL=1.
Run:
```
$ kodev run
Test:
$ curl -k https://127.0.0.1:8888
$ curl -k https://127.0.0.1:8888/hello
$ curl -k https://127.0.0.1:8888/slow