rosbridge_suite: 0.5.4-1 in 'hydro/distribution.yaml' [bloom]

Increasing version of package(s) in repository `rosbridge_suite` to `0.5.4-1`:

- distro file: `hydro/distribution.yaml`
- bloom version: `0.5.4`
- previous version for package: `0.5.3-0`

## rosapi

```
* add rosnode and rosgraph
* Contributors: Jihoon Lee
```

## rosbridge_library

```
* removing wrong import
* test case for fixed size of uint8 array
* uses regular expresion to match uint8 array and char array.
* logerr when it fails while message_conversion
* Contributors: Jihoon Lee
```

## rosbridge_server

- No changes

## rosbridge_suite

- No changes