vision_visp: 0.7.3-0 in 'groovy/distribution.yaml' [bloom]

Increasing version of package(s) in repository `vision_visp` to `0.7.3-0`:

- distro file: `groovy/distribution.yaml`
- bloom version: `0.5.2`
- previous version for package: `0.7.2-1`

## vision_visp

```
* groovy-0.7.2
* Prepare changelogs
* Contributors: Fabien Spindler
```

## visp_auto_tracker

```
* Install visp_auto_tracker/models folder
* groovy-0.7.2
* Prepare changelogs
* Contributors: Fabien Spindler
```

## visp_bridge

```
* groovy-0.7.2
* Prepare changelogs
* Contributors: Fabien Spindler
```

## visp_camera_calibration

```
* groovy-0.7.2
* Prepare changelogs
* Contributors: Fabien Spindler
```

## visp_hand2eye_calibration

```
* groovy-0.7.2
* Prepare changelogs
* Contributors: Fabien Spindler
```

## visp_tracker

```
* Remove unicode character that makes bloom-release failing
* Update changelog
* Contributors: Fabien Spindler
```