CDAP-611: Ported Netlens app to use Services instead of Procedures

@ParthGandhi this RP contains all changes described in https://github.com/caskdata/cdap-apps/pull/39 + fixes according to PR comments
NAME

So that in code you have:
```
AnomaliesService.NAME
```
istead of 
```
AnomaliesService.SERVICE_NAME
```