Add extracted source directory and README navigation

extracted-source/node_modules/auto-bind/index.js

@@ -0,0 +1,41 @@
+// Gets all non-builtin properties up the prototype chain.
+const getAllProperties = object => {
+	const properties = new Set();
+
+	do {
+		for (const key of Reflect.ownKeys(object)) {
+			properties.add([object, key]);
+		}
+	} while ((object = Reflect.getPrototypeOf(object)) && object !== Object.prototype);
+
+	return properties;
+};
+
+export default function autoBind(self, {include, exclude} = {}) {
+	const filter = key => {
+		const match = pattern => typeof pattern === 'string' ? key === pattern : pattern.test(key);
+
+		if (include) {
+			return include.some(match); // eslint-disable-line unicorn/no-array-callback-reference
+		}
+
+		if (exclude) {
+			return !exclude.some(match); // eslint-disable-line unicorn/no-array-callback-reference
+		}
+
+		return true;
+	};
+
+	for (const [object, key] of getAllProperties(self.constructor.prototype)) {
+		if (key === 'constructor' || !filter(key)) {
+			continue;
+		}
+
+		const descriptor = Reflect.getOwnPropertyDescriptor(object, key);
+		if (descriptor && typeof descriptor.value === 'function') {
+			self[key] = self[key].bind(self);
+		}
+	}
+
+	return self;
+}