Parses a DocBlock comment tag Accepts the raw comment text of the comment straight from the file, including all the stars in the middle Returns an array of tags. Each paremeter will contain an array of the tags that existed, one for each tag The summary is returned in a 'summary' tag. The output for a function with two param tags, a return tag and a summary will be something like the following: array { ['@summary'] = '...', ['@param'] { [0] = '...', [1] = '...' }, ['@return'] { [0] = '...', } }