moveit_ros: 0.5.18-0 in 'indigo/distribution.yaml' [bloom]

Increasing version of package(s) in repository `moveit_ros` to `0.5.18-0`:

- distro file: `indigo/distribution.yaml`
- bloom version: `0.5.2`
- previous version for package: `0.5.17-0`

## moveit_ros

- No changes

## moveit_ros_benchmarks

- No changes

## moveit_ros_benchmarks_gui

```
* add pkg-config as dep
* find PkgConfig before using pkg_check_modules
  PC specific functions mustn't be used before including PkgConfig
* Contributors: Ioan Sucan, v4hn
```

## moveit_ros_manipulation

- No changes

## moveit_ros_move_group

- No changes

## moveit_ros_perception

- No changes

## moveit_ros_planning

- No changes

## moveit_ros_planning_interface

- No changes

## moveit_ros_robot_interaction

- No changes

## moveit_ros_visualization

```
* add pkg-config as dep
* find PkgConfig before using pkg_check_modules
  PC specific functions mustn't be used before including PkgConfig
* Contributors: Ioan Sucan, v4hn
```

## moveit_ros_warehouse

- No changes