feature: enhance 4K DM Endpoint HDCP functionality

feature: add bridge join to report number of HDCP inputs

feature: Resolve #1088

feature: Resolve #1089

essentials-framework/Essentials DM/Essentials_DM/Endpoints/EndpointInterfaces.cs

@@ -0,0 +1,91 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Crestron.SimplSharp;
+using Crestron.SimplSharpPro.DM;
+using Crestron.SimplSharpPro.DM.Endpoints;
+using PepperDash.Essentials.Core;
+
+namespace PepperDash_Essentials_DM
+{
+    public interface IHasDmInHdcpSet
+    {
+        void SetDmInHdcpState(eHdcpCapabilityType hdcpState);
+    }
+
+    public interface IHasDmInHdcpGet
+    {
+        IntFeedback DmInHdcpStateFeedback { get; }
+    }
+
+    public interface IHasDmInHdcp : IHasDmInHdcpGet, IHasDmInHdcpSet
+    {
+        eHdcpCapabilityType DmInHdcpCapability { get; }
+    }
+
+
+    public interface IHasHdmiInHdcpSet
+    {
+        void SetHdmiInHdcpState(eHdcpCapabilityType hdcpState);
+    }
+
+    public interface IHasHdmiInHdcpGet
+    {
+        IntFeedback HdmiInHdcpStateFeedback { get; }
+    }
+
+    public interface IHasHdmiInHdcp : IHasHdmiInHdcpGet, IHasHdmiInHdcpSet
+    {
+        eHdcpCapabilityType HdmiInHdcpCapability { get; }
+    }
+
+
+    public interface IHasHdmiIn1HdcpSet
+    {
+        void SetHdmiIn1HdcpState(eHdcpCapabilityType hdcpState);
+    }
+
+    public interface IHasHdmiIn1HdcpGet
+    {
+        IntFeedback HdmiIn1HdcpStateFeedback { get; }
+    }
+
+    public interface IHasHdmiIn1Hdcp : IHasHdmiIn1HdcpGet, IHasHdmiIn1HdcpSet
+    {
+        eHdcpCapabilityType HdmiIn1HdcpCapability { get; }
+    }
+
+
+    public interface IHasHdmiIn2HdcpSet
+    {
+        void SetHdmiIn2HdcpState(eHdcpCapabilityType hdcpState);
+    }
+
+    public interface IHasHdmiIn2HdcpGet
+    {
+        IntFeedback HdmiInIn2HdcpStateFeedback { get; }
+    }
+
+    public interface IHasHdmi2InHdcp : IHasHdmiIn2HdcpGet, IHasHdmiIn2HdcpSet
+    {
+        eHdcpCapabilityType Hdmi2InHdcpCapability { get; }
+    }
+
+
+
+    public interface IHasDisplayPortInHdcpGet
+    {
+        IntFeedback DisplayPortInHdcpStateFeedback { get; }
+    }
+
+    public interface IHasDisplayPortInHdcpSet
+    {
+        void SetDisplayPortInHdcpState(eHdcpCapabilityType hdcpState);
+    }
+
+    public interface IHasDisplayPortInHdcp : IHasDisplayPortInHdcpGet, IHasDisplayPortInHdcpSet
+    {
+        eHdcpCapabilityType DisplayPortInHdcpCapability { get; }
+    }
+}