vweb: fix duplicate fn error with multiple templates

vlib/strings/strings.v

@@ -0,0 +1,16 @@
+module strings
+
+//import rand
+
+// random returns a random string with `n` characters
+/*
+// TODO
+pub fn random(n int) string {
+	buf := vmalloc(n)
+	for i in 0..n {
+		buf[i] = rand.next()
+	}
+	return tos(buf)
+}
+*/
+