Add node modules and compiled JavaScript from main (#172)

Co-authored-by: Oliver King <oking3@uncc.edu>

node_modules/parse5/lib/extensions/error-reporting/tokenizer-mixin.js

@@ -0,0 +1,17 @@
+'use strict';
+
+const ErrorReportingMixinBase = require('./mixin-base');
+const ErrorReportingPreprocessorMixin = require('./preprocessor-mixin');
+const Mixin = require('../../utils/mixin');
+
+class ErrorReportingTokenizerMixin extends ErrorReportingMixinBase {
+    constructor(tokenizer, opts) {
+        super(tokenizer, opts);
+
+        const preprocessorMixin = Mixin.install(tokenizer.preprocessor, ErrorReportingPreprocessorMixin, opts);
+
+        this.posTracker = preprocessorMixin.posTracker;
+    }
+}
+
+module.exports = ErrorReportingTokenizerMixin;