Add enough typescript configuration to get mocha failing

We still have some backtraces because we're importing es6 js files into
our TS tests, and typescript is understandably failing due to their
syntax. Next step is to change those to .ts files, too.

Author: rylnd

.babelrc

@@ -26,11 +26,15 @@
     "url": "https://github.com/adorableio/adorable-avatars.git"
   },
   "devDependencies": {
+    "@types/mocha": "^5.2.6",
+    "@types/node": "^11.13.4",
     "chai": "^4.2.0",
     "colors": "^1.3.3",
     "concurrently": "^4.1.0",
     "find-port": "^2.0.1",
     "mocha": "^6.1.3",
-    "supertest": "^4.0.2"
+    "supertest": "^4.0.2",
+    "ts-node": "^8.1.0",
+    "typescript": "^3.4.3"
   }
 }

package-lock.json

@@ -1,3 +1,4 @@
---require babel-core/register
+--require ts-node/register
 --recursive
 --reporter spec
+test/**/*.test.ts

package.json

@@ -0,0 +1,16 @@
+{
+  "compilerOptions": {
+    "module": "commonjs",
+    "esModuleInterop": true,
+    "target": "es6",
+    "noImplicitAny": false,
+    "moduleResolution": "node",
+    "sourceMap": true,
+    "outDir": "dist",
+    "baseUrl": ".",
+    "paths": {
+      "*": ["node_modules/*", "src/types/*"]
+    }
+  },
+  "include": ["src/**/*"]
+}