feat: renames test to quiz, fixes #244

BREAKING CHANGE

* changed test to quiz: fixes issues in #244
* fixed info.toml: #244
* fixed naming related issues

exercises/quiz1.rs

@@ -0,0 +1,23 @@
+// quiz1.rs
+// This is a quiz for the following sections:
+// - Variables
+// - Functions
+
+// Mary is buying apples. One apple usually costs 2 Rustbucks, but if you buy
+// more than 40 at once, each apple only costs 1! Write a function that calculates
+// the price of an order of apples given the order amount. No hints this time!
+
+// I AM NOT DONE
+
+// Put your function here!
+// fn ..... {
+
+// Don't modify this function!
+#[test]
+fn verify_test() {
+    let price1 = calculate_apple_price(35);
+    let price2 = calculate_apple_price(65);
+
+    assert_eq!(70, price1);
+    assert_eq!(65, price2);
+}