recreator: added support for input statements

added functions for input begin string, input assign, and input command
codes; added pointers to these functions to the table entries for these
codes; and set the table entries for the input parse and input begin
codes to the blank recreate function

modified the table name access function (with token argument) to return
the full name of the code needed for codes with two keywords (the second
name with a space is only added if the code is a two word code and the
second name is set)

the expected recreated output files for translator test 12 (INPUT tests)
were updated to the expected recreated outputs (all statements are
recreated correctly