Add simple README and LICENSE info from testregex.c

LICENSE

@@ -0,0 +1,18 @@
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of THIS SOFTWARE FILE (the "Software"), to deal in the Software
+ * without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do
+ * so, subject to the following disclaimer:
+ *
+ * THIS SOFTWARE IS PROVIDED BY AT&T ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL AT&T BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+

README

@@ -0,0 +1,12 @@
+regex(3) test harness
+
+build:	cc -o testregex testregex.c
+help:	testregex --man
+note:	REG_* features are detected by #ifdef; if REG_* are enums
+		then supply #define REG_foo REG_foo for each enum REG_foo
+
+Glenn Fowler <gsf@research.att.com>
+AT&T Research
+
+PLEASE: publish your tests so everyone can benefit
+