Remove grequests, better error handling

• Remove grequests as a dependency
• Switch to using aiohttp for local file uploads
• Add warning for large uploads
• Local file uploads will now crash loudly if anything goes wrong on any batch instead of silently proceeding with errors
• Disallow sending NaNs for now since that would mess up querying
• Match all dependency requirements with colab so we stop getting errors when trying to use the client in colab