Generated an Atom package for Orion using Atom's package generator.

Added information about the Atom Package code base, as well as future work to be done.

Functions:
- start_collab
- join_session
- join_document

Socket.io Events:
- connect
- disconnect
- error
- message

Functions:
- join_session
- join_document

These functions (with hardcoded values) establish a connection to Orion,
receive newly typed text from Orion, and insert the text where the cursor is
in Atom.

IDs and paths are hardcoded and auth is bypassed for dev purposes.

- Fetch document content (bypassing authentication)

- Handle more Orion operations on Atom:
  - Backspaces
  - Insertion:
    - First char in an empty document
    - First char in a non-empty document
    - Char that was inserted in the middle
    - Char that was inserted at the end

- Demo
  (Working towards inserting text in the correct position in Atom)
  - Insert text in-place
  - Insert text at a certain position in the document

- Comments and TODO tags to identify areas of work.
- HACK tags mark hardcoded values.