message_multiplexing: 0.2.0-0 in 'indigo/distribution.yaml' [bloom]

Increasing version of package(s) in repository `message_multiplexing` to `0.2.0-0`:

- upstream repository: https://github.com/stonier/message_multiplexing.git
- release repository: https://github.com/yujinrobot-release/message_multiplexing-release.git
- distro file: `indigo/distribution.yaml`
- bloom version: `0.5.11`
- previous version for package: `0.1.1-0`

## mm_messages

```
* publisher centralised here for shared use by different messaging patterns.
```

## mm_mux_demux

```
* nanomsg pipeline and service demo programs
* mux/demux static api renamed to allow cross-class templatisation calls
```

## mm_radio

```
* gtest added
* first prototype of a 2-way pub-sub radio.
* nanomsg demo radio program
```