SuReal(surface realization) initial version

This is the a preliminary version of Surface-realizaion(SuReal). The main function is sureal which takes in a SetLink of relex-to-logic output to parrot/echo back the sentence.  Use (r2l "some sentence") rather than (reles-parse "some sentence") to get the SetLinks for testing purposes.
This doesn't seem like a good idea ... there must be some better way of isolating the part of the text that you want ...