Open Earth Engine extension

This extension adds some useful feature to the browser code editor of Google Earth Engine

Features:

• a night mode
• add a cache for the OEEL (Open Earth Engine Library)
• open the code editor if we click on the icon (or the OEEL documentation if the code editor is already open).
• buttons (arrows) to insert function signature from the documentation to the code editor
• a button to upload images by drag-and-drop using manifests
• allow for automatic export.
• command+S for saving on mac
• PlanetLab imagery (search / order / transfer to GEE) using Planet API.
• check is assets are shareable when "get link".
• add a button to run all tasks
• add support for Plotly in code editor and EE App (including events)
• open script in a new tab when double click on it
• set the Font (inc. size) of the code editor