New Api definition

[Dosakaya]

dsSetStandbyVideoState
dsGetStandbyVideoState

[skamath]

better to propagate dsError_t, applicable to other APIs too..

[skamath]

better to propagate dsError_t

[Copilot]

Pull Request Overview

This PR adds new API definitions for managing standby video state and HDMI ARC port functionality. The changes implement functions to get and set standby video states for video ports, along with a new function to retrieve HDMI ARC port IDs.

• Implements dsSetStandbyVideoState and dsGetStandbyVideoState functions for managing video port standby states
• Adds corresponding C++ wrapper methods in VideoOutputPort class
• Introduces getHDMIARCPortId function in HdmiInput class for retrieving ARC port information

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
rpc/cli/dsVideoPort.c	Implements core C functions for setting and getting standby video state
ds/videoOutputPort.cpp	Adds C++ wrapper methods for standby video state management
ds/include/videoOutputPort.hpp	Declares new standby video state methods in header
ds/include/hdmiIn.hpp	Declares new HDMI ARC port ID getter method
ds/hdmiIn.cpp	Implements HDMI ARC port ID retrieval function

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