File: getPossibleWords

Gets all possible words for a given number sequence typed on a standard telephone 10-digit keypad. Gets ALL letter combinations and not just those which are actual words (which would require a separate dictionary lookup). 
Characters that do not correspond with a letter will be ignored. 
Given...
@params
    @int:    numberSequence
    @string: numberSequence

@return: array An array of unique lowercase string word possibilities given the number sequence.