Adding wol plugin

wol/ios/Plugin/wolPlugin.m

@@ -0,0 +1,8 @@
+#import <Foundation/Foundation.h>
+#import <Capacitor/Capacitor.h>
+
+// Define the plugin using the CAP_PLUGIN Macro, and
+// each method the plugin supports using the CAP_PLUGIN_METHOD macro.
+CAP_PLUGIN(wolPlugin, "wol",
+           CAP_PLUGIN_METHOD(echo, CAPPluginReturnPromise);
+)