re-add match method

I want to avoid any regressions. I meant to do this before publish.

index.js

@@ -76,6 +76,12 @@ const micromatch = (list, patterns, options) => {
   return matches;
 };
 
+/**
+ * Backwards compatibility
+ */
+
+micromatch.match = micromatch;
+
 /**
  * Returns a matcher function from the given glob `pattern` and `options`.
  * The returned function takes a string to match as its only argument and returns