Misc fixes and improvements

* Added request logging to com.noccy.apiclient
* Added plugin com.noccy.watcher
* Added pipe command and filter support
* Fixes and stubs

plugins/com.noccy.watcher/Monitor/MonitorInterface.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace SparkPlug\Com\Noccy\Watcher\Monitor;
+
+use SparkPlug\Com\Noccy\Watcher\Rule;
+
+interface MonitorInterface
+{
+    /**
+     * Add a rule to be watched for changes
+     */
+    public function add(Rule $rule);
+
+    /**
+     * Return a list of modified filenames
+     */
+    public function getModified(): array;
+
+    /**
+     * Return a list of watched filenames
+     */
+    public function getWatched(): array;
+
+    /**
+     * Called periodically to refresh monitors
+     */
+    public function loop();
+}