Test package publishing

[bleggett]

I'm worried that the .h5 model files are too big for this to be published to npmjs - but we can work around this in the kit image if we have to.

Note that the .h5 model files currently live in 1_Training/Data/Model_Weights/Default and are NOT included in the NPM packaging step - but they are required for the server to run - we need to figure out what to do with them.

[jamestharpe]

@bleggett - I like the idea you proposed in chat to include a "model data" directory that we can pre-populate w/ out including it in the NPM package.

[bleggett]

FTR here's the full proposal:

1. Package and ship the NPM package without any default model files at all
2. Expose a global setting in the Node-RED config file that points to a “modeldata” directory
3. In our kit, set that modeldata directory to a custom location and stick our default/starter model files there.