hector_slam: 0.3.3-0 in 'hydro/distribution.yaml' [bloom]

Increasing version of package(s) in repository `hector_slam` to `0.3.3-0`:

- distro file: `hydro/distribution.yaml`
- bloom version: `0.5.10`
- previous version for package: `0.3.2-1`

## hector_compressed_map_transport

```
* fixed cmake find for eigen in indigo
* fixed libopencv-dev rosdep key
* Contributors: Alexander Stumpf, Johannes Meyer
```

## hector_geotiff

```
* fixed cmake find for eigen in indigo
* added launchfile to restart geotiff node
* Contributors: Alexander Stumpf
```

## hector_geotiff_plugins

- No changes

## hector_imu_attitude_to_tf

- No changes

## hector_imu_tools

```
* hector_imu_tools: Basics of simple height etimation
* hector_imu_tools: Add tf publishers in hector_imu_tools
* hector_imu_tools: Also write out fake odometry
* hector_imu_tools: Fix typo
* hector_imu_tools: Prevent race conditions in slam, formatting
* hector_imu_tools: Small executable for generating a IMU message out of a (2d) pose and roll/pitch imu message
* Contributors: Stefan Kohlbrecher
```

## hector_map_server

- No changes

## hector_map_tools

- No changes

## hector_mapping

- No changes

## hector_marker_drawing

```
* fixed cmake find for eigen in indigo
* Contributors: Alexander Stumpf
```

## hector_nav_msgs

```
* added GetNormal service, that returns normal and orientation of an occupied cell
* Contributors: Dorothea Koert
```

## hector_slam

- No changes

## hector_slam_launch

- No changes

## hector_trajectory_server

- No changes