Add benchmarking

Author: patmooney

.gitignore

@@ -1 +1,2 @@
 node_modules/
+imgs/

.npmignore

@@ -0,0 +1,4 @@
+test/
+docs/
+extest/
+imgs/

extest/bench.js

@@ -0,0 +1,26 @@
+const s = require('../index');
+const runs = 20;
+const input = process.argv[2];
+if (!input) {
+    console.error('Input image path required');
+    process.exit(1);
+}
+
+runTest(() => s.toAnsii(process.argv[2])).then(console.log);
+
+async function runTest(test) {
+    const results = [];
+    for (let tI = 0; tI < 20; tI++){
+        const start = Date.now();
+        await test();
+        results.push(Date.now() - start);
+    }
+
+    return {
+        results: results.slice(),
+        avg: results.reduce((tot, r) => tot + r, 0) / results.length,
+        max: results.sort().reverse()[0],
+        min: results.sort()[0],
+        tot: results.reduce((tot, r) => tot + r, 0)
+    };
+}

package-lock.json

@@ -19,7 +19,7 @@
     "terminal"
   ],
   "author": "patmooney",
-  "license": "SEE LICENSE IN LICENSE",
+  "license": "MIT",
   "bugs": {
     "url": "https://github.com/patmooney/node-terminal-art/issues"
   },