Add node modules and compiled JavaScript from main

node_modules/@jest/reporters/build/CoverageReporter.d.ts

@@ -0,0 +1,23 @@
+/**
+ * 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 { AggregatedResult, TestResult } from '@jest/test-result';
+import type { Config } from '@jest/types';
+import BaseReporter from './BaseReporter';
+import type { Context, CoverageReporterOptions, Test } from './types';
+export default class CoverageReporter extends BaseReporter {
+    private _coverageMap;
+    private _globalConfig;
+    private _sourceMapStore;
+    private _options;
+    private _v8CoverageResults;
+    constructor(globalConfig: Config.GlobalConfig, options?: CoverageReporterOptions);
+    onTestResult(_test: Test, testResult: TestResult): void;
+    onRunComplete(contexts: Set<Context>, aggregatedResults: AggregatedResult): Promise<void>;
+    private _addUntestedFiles;
+    private _checkThreshold;
+    private _getCoverageResult;
+}