Add native Windows binary for gperf.

gperf/src/gperf/3.0.1/gperf-3.0.1-src/tests/permutc2.gperf

Index: gperf/src/gperf/3.0.1/gperf-3.0.1-src/tests/permutc2.gperf
===================================================================
--- gperf/src/gperf/3.0.1/gperf-3.0.1-src/tests/permutc2.gperf	(revision 0)
+++ gperf/src/gperf/3.0.1/gperf-3.0.1-src/tests/permutc2.gperf	(revision 0)
@@ -0,0 +1,14 @@
+%{
+/* Test of a hash function which has to deal with permutation and
+   case-independence.  Without case-independence, the alpha_inc is 1.
+   With case-independence, the alpha_inc is 3.  */
+%}
+%%
+az
+za
+ay
+ya
+x{
+x[
+{w
+[w