Add native Windows binary for gperf.

gperf/contrib/gperf/3.0.1/gperf-3.0.1-src/README

Index: gperf/contrib/gperf/3.0.1/gperf-3.0.1-src/README
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+This is GNU gperf. It is a program that generates perfect hash
+functions for sets of key words.  A perfect hash function is:
+
+          A hash function and a data structure that allows 
+          recognition of a key word in a set of words using 
+          exactly 1 probe into the data structure.
+
+The doc/gperf.html file explains how the program works, the form of
+the input, what options are available, and hints on choosing the best
+options for particular key words set.
+
+See the file NEWS for a list of major changes in the current release.
+
+See the file INSTALL for compilation and installation instructions.
+
+Output from the GPERF program is used to recognize reserved words in
+the GNU C, GNU C++, and GNU Pascal compilers, as well as with the GNU
+indent program.
+
+For general documentation on the coding and usage standards
+this distribution follows, see the GNU standards document
+ftp://ftp.gnu.org/pub/gnu/standards.*, especially the 'Makefile
+Conventions', 'Configuration', and 'User Interfaces' sections.
+
+Mail suggestions and bug reports to <bug-gnu-gperf@gnu.org>.  When
+reporting bugs, please include in the subject line the package name
+and version (output of 'gperf --version') for which you found a problem.
+