Adding the licenses from everything under /obelisk/dep/
Fixes #85.

Fetched from https://raw.githubusercontent.com/obsidiansystems/obelisk/master/LICENSE

For people like me who want to double-click all the things

`curl -L https://github.com/googlefonts/roboto/raw/main/LICENSE -o roboto`

`curl -LO https://github.com/google/material-design-icons/raw/master/LICENSE`

Commands used:

Get the version with:
`curl 'https://unpkg.com/material-components-web@latest/dist/material-components-web.min.css'`
-> "Found. Redirecting to /material-components-web@14.0.0/dist/material-components-web.min.css"

Aha so this is version 14.0.0! Download:

`curl -LO 'https://unpkg.com/material-components-web@latest/dist/material-components-web.min.css'`

Add the license:

`curl -LO https://raw.githubusercontent.com/material-components/material-components-web/master/LICENSE`