0.3.1: Colorful command improvements

• API: Console output is logged with levels and timestamps, and if chalk is installed, then it is used to color the output
• Longer commands (mostly those that make external web requests) now set typing indicators ahead of their contents
• color command:
  • Accepts hex codes without the # prefix
  • Tncludes a wider preview image, and the color is also displayed in the left border of the embed
• npm command:
  • Always outputs 3 results, even if there is an exact match
  • Is smarter about checking for duplicate links between a package's repository and homepage