rrdtool1: import from packages, add myself as maintainer

While we're at it, relocate from libs/ to utils/ as it provides executables
and change the directory name from rrdtool-1.0.x to rrdtool1 to make it match
the source package name.

Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>

utils/rrdtool1/patches/002-no_timezone.patch

@@ -0,0 +1,24 @@
+--- a/src/rrd_tool.c
++++ b/src/rrd_tool.c
+@@ -225,11 +225,8 @@
+ 	  struct rusage  myusage;
+ 	  struct timeval starttime;
+ 	  struct timeval currenttime;
+-	  struct timezone tz;
+ 
+-	    tz.tz_minuteswest =0;
+-	    tz.tz_dsttime=0;
+-	    gettimeofday(&starttime,&tz);
++	    gettimeofday(&starttime,NULL);
+ #endif
+ 
+ 	    while (fgets(aLine, sizeof(aLine)-1, stdin)){
+@@ -252,7 +249,7 @@
+ 
+ #if HAVE_GETRUSAGE
+ 		getrusage(RUSAGE_SELF,&myusage);
+-		gettimeofday(&currenttime,&tz);
++		gettimeofday(&currenttime,NULL);
+ 		printf("OK u:%1.2f s:%1.2f r:%1.2f\n",
+ 		       (double)myusage.ru_utime.tv_sec+
+ 		       (double)myusage.ru_utime.tv_usec/1000000.0,