Fuzzer improvements.

phase_of_moon and friday_13th determined using rn2() instead of local
time if fuzzing.  Don't reseed using init_random() if fuzzing.  Allow
set_random to be called outside of hacklib.  rn2_on_display_rng uses
rn2 if fuzzing so that we have a single source of random that we can
ensure is reproducible.  Implement rul() that returns a random unsigned
long.  Fix bug in fuzzer handling of ntposkey which would cause us to use
unitialized values for x and y.  Added command line arguments to allow
auto starting and stopping of fuzzer.  Add a logging facility for the
fuzzer to use to record activity.  Added some scripts used to automate
fuzzer testing on windows.

win/win32/scripts/fuzzer/longtest.bat

@@ -0,0 +1,23 @@
+echo off
+
+SETLOCAL ENABLEEXTENSIONS
+SETLOCAL ENABLEDELAYEDEXPANSION
+
+set STEP_SIZE=5000
+set FINAL_MOVE=500000
+set START_MOVE=5000
+
+for /L %%i in (%START_MOVE%, %STEP_SIZE%, %FINAL_MOVE%) do (
+
+    call runtill.bat %%i
+	
+	if ERRORLEVEL 1 (
+	    echo FAILED getting running to %%i.
+		exit /b 1
+	)
+
+)
+
+echo SUCCESS.
+
+