stdr_simulator: 0.1.2-0 in 'hydro/distribution.yaml' [bloom]

Increasing version of package(s) in repository `stdr_simulator` to `0.1.2-0`:

- distro file: `hydro/distribution.yaml`
- bloom version: `0.5.1`
- previous version for package: `0.1.1-0`

## stdr_robot

```
* add collision checking
* fix minor issues with robot reposition
```

## stdr_server

- No changes

## stdr_msgs

- No changes

## stdr_resources

- No changes

## stdr_simulator

- No changes

## stdr_launchers

- No changes

## stdr_parser

- No changes

## stdr_gui

```
* Minor changes. Added message when relocation is not possible.
* Different labels for add and create robot
```

## stdr_samples

- No changes