chore(testing): Add options object to be able to pass in other glob options

[ryanseddon]

Description

Glob has a few other options that would be useful to access through this helper method.

Detail

I wanted to ignore a directory, rather than add just ignore as another parameter I've added the options parameter so you can pass through any glob option.

I've also made this a non-breaking change by keeping cwd around.

Both of these are valid uses of getExports.

getExports({ cwd: __dirname, options: { ignore: 'a/**' } });

getExports({ options: { ignore: 'a/**', cwd: __dirname } });

If you specify the cwd option that will override a cwd property in the options parameter.

[coveralls]

Coverage increased (+0.002%) to 93.827% when pulling 1a678d2 on ryan/add_options_getExports into 8934a2c on master.

[austingreendev]

Nice!