Feature request: Improve Software Tragger Capability and Dynamic Enable/Disable

[MikeFan-Anyware]

Camera: Gemini 335Le
OrbbecSDK_ROS2 branch v2_main

The software triggering function in this commit is convenient and very useful to us. We like the mode where we only send a software trigger vis ROS service, and keep the camera stream off for most of the time.

However, we noticed a few issues:

1. The auto exposure/auto white balancing is not working well under this mode. The picture color looks purple-ish and cannot adjust itself quickly enough when the capture is in a different lighting environment than the last capture. (If the frames per capture is set to 20+ yes it will adjust itself over time but the first frame is almost always weird)
2. We cannot turn it back to streaming mode for a different robot task without rebooting the device.

These two behaviors made it very difficult to use the software trigger functionality.

Normal stream	Software triggered

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It would be great if we could have the following features:

• A service that can dynamically switch the camera between software_trigger and streaming mode
• Software-triggered capture that considers the auto exposure of the camera

[obyalian]

Thank you for reporting this. We will investigate immediately and aim to fix it as quickly as possible.