Implement a Vim plugin to run Cppcheck

[brobeson]

When the ex command, or Vim map, is run, the plugin should:

• [x] Run Cppcheck on the current buffer
• [x] Report the results to the quick fix window

[brobeson]

Still to do:

• [ ] Figure out the following Cppcheck template tags
  • [ ] callstack
  • [ ] id
  • [ ] severity
• [x] Factor this functionality into it's own plugin.
• [x] Submit to http://www.vim.org