Incorporate ChannelWorm2 into Docker

[gsarma]

We should figure out what the aims are of having ChannelWorm2 as part of this image. As it stands, ChannelWorm2 is a standalone project with static data and some code. Having it as part of the Docker image may be useful so that people have the data and the parameter fitting scripts to work with, but otherwise, it is not directly needed for producing simulation output.

@slarson @rgerkin @mwatts15 @pgleeson