add jest config

Author: jfet97

jest.config.js

@@ -0,0 +1,7 @@
+module.exports = {
+  verbose: true,
+  collectCoverage: true,
+  coverageReporters: ['text'],
+  preset: 'ts-jest',
+  testRegex: '/test/.*\\.test\\.ts$',
+};