fix(rjs-ts): add baseUrl to tsconfig

Author: AshleyGrant

lib/resources/content/tsconfig.template.json

@@ -12,7 +12,8 @@
     "experimentalDecorators": true,
     "allowJs": true,
     "moduleResolution": "node",
-    "lib": ["es2017", "dom"]
+    "lib": ["es2017", "dom"],
+    "baseUrl": "src",
     // @endif
     // @if bundler.id='webpack'
     "target": "es5",