Shared node modules

- commandLineUtils.js is a node module that will process command line arguments, against a configuration of argument processors.  This is used by the forceios and forcedroid packages for handling their command line input.  Any options not specified explicitly on the command line will be interactively prompted for entry to the user.

- outputColors.js is just an object containing different ANSI color escape sequences to use during execution of the package scripts.