Added initial tsup config

Author: migtibincoski

tsup.config.ts

@@ -0,0 +1,11 @@
+import { defineConfig } from "tsup";
+
+export default defineConfig({
+  entry: ["src/index.ts"],
+  format: ["cjs", "esm"],
+  outDir: "build",
+  dts: true,
+  splitting: false,
+  sourcemap: true,
+  clean: true,
+});