feat(build): Create minified UMD build (#443)

Author: HarmvZ

package.json

@@ -37,6 +37,7 @@
     "@rollup/plugin-json": "^6.1.0",
     "@rollup/plugin-node-resolve": "^15.2.3",
     "@rollup/plugin-replace": "^6.0.1",
+    "@rollup/plugin-terser": "^0.4.4",
     "acorn": "^7.1.0",
     "acorn-jsx": "^5.2.0",
     "eslint": "^8.17.0",

rollup.config.mjs

@@ -6,6 +6,7 @@ import commonjs from "@rollup/plugin-commonjs";
 // import babelRuntime from "@rollup/plugin-transform-runtime"
 import json from "@rollup/plugin-json";
 import replace from "@rollup/plugin-replace";
+import terser from "@rollup/plugin-terser";
 import { readFileSync } from "fs";
 
 const pkg = JSON.parse(
@@ -21,6 +22,13 @@ export default {
             name: "dcmjs",
             sourcemap: true
         },
+        {
+            file: pkg.main.replace(/\.js$/, ".min.js"),
+            format: "umd",
+            name: "dcmjs",
+            sourcemap: true,
+            plugins: [terser()]
+        },
         {
             file: pkg.module,
             format: "es",