new module to read gee app code

[12rambau]

What is the name of your repository ?
https://github.com/12rambau/gee_source

The name of your dashboard app
earthengine app reader

A short description of the app
Extract source code from any GEE app URL

Is your module requiring a GEE account ?
yes

Any comment you want to add
I'm using it more and more, maybe that could help other devs (at least now it's using code hilglighter)

maintainer checklist

• [x] Name is set
• [x] Description set
• [x] Comprehensive README
• [x] 3 languages documentation files (can be empty)
• [x] The requirements.txt file have been updated
• [x] Existence of a release branch
• [x] check behaviour within a fresh venv

[cdanielw]

Done.