ElectronNET.API: Move API code to subfolder

src/ElectronNET.API/API/Entities/CPUUsage.cs

@@ -0,0 +1,19 @@
+namespace ElectronNET.API.Entities
+{
+    /// <summary>
+    /// 
+    /// </summary>
+    public class CPUUsage
+    {
+        /// <summary>
+        /// Percentage of CPU used since the last call to getCPUUsage. First call returns 0.
+        /// </summary>
+        public int PercentCPUUsage { get; set; }
+
+        /// <summary>
+        /// The number of average idle cpu wakeups per second since the last call to 
+        /// getCPUUsage.First call returns 0.
+        /// </summary>
+        public int IdleWakeupsPerSecond { get; set; }
+    }
+}