Add rollup-plugin-analyzer (#8690)

Author: kurkle

package-lock.json

@@ -82,6 +82,7 @@
     "moment": "^2.29.1",
     "pixelmatch": "^5.2.1",
     "rollup": "^2.41.4",
+    "rollup-plugin-analyzer": "^4.0.0",
     "rollup-plugin-cleanup": "^3.2.1",
     "rollup-plugin-dts": "^3.0.1",
     "rollup-plugin-istanbul": "^3.0.0",

package.json

@@ -1,3 +1,4 @@
+const analyze = require('rollup-plugin-analyzer');
 const cleanup = require('rollup-plugin-cleanup');
 const dts = require('rollup-plugin-dts').default;
 const json = require('@rollup/plugin-json');
@@ -34,6 +35,7 @@ module.exports = [
       cleanup({
         sourcemap: true
       }),
+      analyze({summaryOnly: true})
     ],
     output: {
       name: 'Chart',