Initial code to dump output in buffer
First draft: dump output in new buffer

Does this for all VimHooks. Press ENTER prompt always shows up.
call feedkeys('0') to skip prompt
Allow for vertical split. Use correct buffer name.
Populate VimHook.optional dictionary

Parses each line in the VimHook script itself, searching for comment lines
of the form:

    // vimhook.foo: true
    // vimhook.bar: false
    // vimhook.x: y

In this example the resulting VimHook will have the following properties:

VimHook:
    optional:
        foo: "true"
        bar: "false"
        x: "y"

Note: would like to handle the case where no value is passed. Also would
like to allow the "=" symbol instead of ":"
Allow for ":" or "=". Allow for no values.
Adjust regexp to allow for value-less keys
Coerce option values; VimHook.getOptionValue