Implement better options parsing for tools with similiar inputs ( such as: loc, ws, tabs)

We should have a common utility for dealing with parsing and validation of options specific to groups of tools.

Start by locating the CoffeeScript entry points and existing option parsing for the loc, ws, and tabs tools. Compare how their similar options are currently parsed and validated, then define the shared utility's scope. Done means those tools use common parsing and validation without losing their tool-specific options.

Written by the indexing model from the issue text.