Migrated tests to jest

Used jest-codemods to migrate, will have to pass everything by hand before we can merge.

test2/fibonacciUntilNum/fibonacciUntilNum.test.js

@@ -0,0 +1,8 @@
+const expect = require('expect');
+const fibonacciUntilNum = require('./fibonacciUntilNum.js');
+
+test('Testing fibonacciUntilNum', () => {
+  //For more information on all the methods supported by tape
+  //Please go to https://github.com/substack/tape
+  expect(typeof fibonacciUntilNum === 'function').toBeTruthy();
+});