Add node modules and compiled JavaScript from main (#54)

Co-authored-by: Oliver King <oking3@uncc.edu>

node_modules/@jest/expect/build/index.d.ts

@@ -0,0 +1,62 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+import type {addSerializer} from 'jest-snapshot';
+import {AsymmetricMatchers} from 'expect';
+import type {BaseExpect} from 'expect';
+import {MatcherFunction} from 'expect';
+import {MatcherFunctionWithState} from 'expect';
+import {Matchers} from 'expect';
+import {MatcherState} from 'expect';
+import type {SnapshotMatchers} from 'jest-snapshot';
+
+export {AsymmetricMatchers};
+
+declare type Inverse<Matchers> = {
+  /**
+   * Inverse next matcher. If you know how to test something, `.not` lets you test its opposite.
+   */
+  not: Matchers;
+};
+
+export declare type JestExpect = {
+  <T = unknown>(actual: T): JestMatchers<void, T> &
+    Inverse<JestMatchers<void, T>> &
+    PromiseMatchers<T>;
+  addSnapshotSerializer: typeof addSerializer;
+} & BaseExpect &
+  AsymmetricMatchers &
+  Inverse<Omit<AsymmetricMatchers, 'any' | 'anything'>>;
+
+export declare const jestExpect: JestExpect;
+
+declare type JestMatchers<R extends void | Promise<void>, T> = Matchers<R> &
+  SnapshotMatchers<R, T>;
+
+export {MatcherFunction};
+
+export {MatcherFunctionWithState};
+
+export {Matchers};
+
+export {MatcherState};
+
+declare type PromiseMatchers<T = unknown> = {
+  /**
+   * Unwraps the reason of a rejected promise so any other matcher can be chained.
+   * If the promise is fulfilled the assertion fails.
+   */
+  rejects: JestMatchers<Promise<void>, T> &
+    Inverse<JestMatchers<Promise<void>, T>>;
+  /**
+   * Unwraps the value of a fulfilled promise so any other matcher can be chained.
+   * If the promise is rejected the assertion fails.
+   */
+  resolves: JestMatchers<Promise<void>, T> &
+    Inverse<JestMatchers<Promise<void>, T>>;
+};
+
+export {};