Add 'trust' command

cli/Valet/Brew.php

@@ -197,4 +197,17 @@ function restartLinkedPhp()
     {
         $this->restartService($this->linkedPhp());
     }
+
+    /**
+     * Create the "sudoers.d" entry for running Brew.
+     *
+     * @return void
+     */
+    function createSudoersEntry()
+    {
+        $this->files->ensureDirExists('/etc/sudoers.d');
+
+        $this->files->put('/etc/sudoers.d/brew', 'Cmnd_Alias BREW = /usr/local/bin/brew *
+%admin ALL=(root) NOPASSWD: BREW'.PHP_EOL);
+    }
 }