Feature/math util (#22)

Development supports the math package

mathUtil/rand_test.go

@@ -0,0 +1,14 @@
+package mathUtil
+
+import "testing"
+
+func TestRand(t *testing.T) {
+	min := 1
+	max := 100
+	for i := 0; i < 1000; i++ {
+		num := Rand(min, max)
+		if num < min || num > max {
+			t.Errorf("randRange() returned %d, which is outside the range of [%d, %d]", num, min, max)
+		}
+	}
+}