implemented getull

src/userinput.c

@@ -203,3 +203,9 @@ unsigned long getul(char *message, unsigned long *min, unsigned long *max) {
     LD(max)
     return getNumber(message, minld, maxld, NULL, NULL, 0, ULONG_MAX);
 }
+
+unsigned long long getull(char *message, unsigned long long *min, unsigned long long *max) {
+    LD(min)
+    LD(max)
+    return getNumber(message, minld, maxld, NULL, NULL, 0, ULLONG_MAX);
+}