Moved admin files to their own directory, trying to get a comprehensive structure in place

uninstall.php

@@ -9,4 +9,7 @@ if ( ! defined( 'WP_UNINSTALL_PLUGIN' ) ) {
 	exit;
 }
 
-// Put logic here to undo things when this plugin is uninstalled.
+function run_uninstaller() {
+	// Put logic here to undo things when this plugin is uninstalled.
+	error_log( 'Uninstall hook activated for plugin at ' . __DIR__ );
+}