Add new test to check for defs regressions.

.github/workflows/node.js.yml

···
       with:
         node-version: ${{ matrix.node-version }}
     - run: npm test all
+    - run: npm run testdefs
+      if: matrix.node-version == 'latest'
     - run: npm run lint
       if: matrix.node-version == 'latest'

package.json

···
   "homepage": "https://lapo.it/asn1js/",
   "files": [ "asn1.js", "base64.js", "hex.js", "int10.js", "oids.js" ],
   "scripts": {
-    "lint": "npx eslint asn1.js base64.js hex.js int10.js oids.js tags.js context.js index.js parseRFC.js dumpASN1.js",
+    "lint": "npx eslint asn1.js base64.js hex.js int10.js oids.js tags.js context.js index.js parseRFC.js dumpASN1.js test.js testDefs.js",
     "lint-action": "npx @action-validator/cli .github/workflows/node.js.yml",
     "serve": "echo 'Connect to http://localhost:3000/' ; npx statik --port 3000 .",
-    "test": "node test"
+    "test": "node test",
+    "testdefs": "node testDefs"
   },
   "engines": {
     "node": ">=12.20.0"
···
         "files": [ "defs.js" ],
         "parserOptions": {
           "ecmaVersion": 2021
+        }
+      }, {
+        "files": [ "testDefs.js" ],
+        "parserOptions": {
+          "ecmaVersion": 2022
         }
       }
     ]

testDefs.js

···
+#!/usr/bin/env node
+
+import { promises as fs } from 'node:fs';
+import { ASN1 } from './asn1.js';
+import { Base64 } from './base64.js';
+import { Defs } from './defs.js';
+
+const tot = [];
+for await (const file of await fs.opendir('examples')) {
+    let content = await fs.readFile('examples/' + file.name);
+    try {
+        try { // try PEM first
+            content = Base64.unarmor(content);
+        } catch (e) { // try DER/BER then
+        }
+        let result = ASN1.decode(content);
+        content = null;
+        const types = Defs.commonTypes
+            .map(type => {
+                const stats = Defs.match(result, type);
+                return { type, match: stats.recognized / stats.total };
+            })
+            .sort((a, b) => b.match - a.match);
+        tot.push([ types[0].match, file.name, types[0].type.description ]);
+    } catch (e) {
+        tot.push([ 0, file.name, e.message ]);
+    }
+}
+for (const f of tot)
+    console.log(f[0].toFixed(3) + '\t' + f[1] + '\t' + f[2]);
+const avg = tot.map(f => f[0]).reduce((sum, val) => sum + val) / tot.length;
+console.log('\x1B[1m\x1B[32m' + (avg * 100).toFixed(3) + '\x1B[39m\x1B[22m%\tAVERAGE');