Connection with spectralworkbench.org's API

[castarco]

The SpectralWorkbench project has a nice API to retrieve and send light spectral information. It wold be nice if ColorSharp can use this API to interact with the SpectralWorkbench database.

• SpectralWorkbench website: https://github.com/publiclab/spectral-workbench
• SpectralWorkbench repository: https://github.com/publiclab/spectral-workbench