convert to typescript

src/core/index.ts

@@ -0,0 +1,11 @@
+import { create_templates, render, stream } from './templates'; // TODO templates is an anomaly... fix post-#91
+
+export { default as build } from './build';
+export { default as export } from './export.js';
+
+export { default as create_app } from './create_app';
+export { default as create_assets } from './create_assets';
+export { default as create_compilers } from './create_compilers';
+export { default as create_routes } from './create_routes';
+
+export const templates = { create_templates, render, stream };