CAN should check if a notebook directory exists on start-up

If the directory doesn't exist on CAN manager start-up, the init command should be made available and a message should be shown to the user asking them to use the init command to create the notebook directory.

References

• CAN #5

Backlinks

• The CAN manager init command
  • The init command will create a CAN notebook directory in the current working directory (the CAN notebook is stored in the .can directory). The command will only be available if the directory doesn't exist at start-up (CAN should check if a notebook directory exists at start-up).