pcl_conversions: 0.1.6-0 in 'hydro/distribution.yaml' [bloom]

Increasing version of package(s) in repository `pcl_conversions` to `0.1.6-0`:

- distro file: `hydro/distribution.yaml`
- bloom version: `0.5.4`
- previous version for package: `0.1.5-0`

## pcl_conversions

```
* Make pcl_conversions run_depend on libpcl-all-dev
  When downstream projects build against pcl_conversions, they need the pcl headers provided by libpcl-all-dev.
* Contributors: Scott K Logan, William Woodall
```