VMP V1.2.3 Release

[New Features]
1. Added "Source Snapshot" function.
2. Added module flash status visualization.
3. Added "Erase seam correction" function in the "Correction" interface.
4. Added "Sync time" function in the "Controller Properties" interface.

[Improvements]
1. Offline mode now supports MX30 and MX20.
2. Users can now set Ethernet port backup between adjacent ports.
3. Brightness calibration can now be enabled separately.
4. Users can now batch switch video sources for all the layers within a device group.

[Bug Fixes]
1. Fixed the issue where occasionally the source feed cannot be displayed as supposed when connecting MX20 to VMP.
2. Fixed the issue where occasionally inconsistent values were returned when reading the flash status of two modules on a single receiving card.
3. Fixed the issue of deviation in PQ values under low grayscale.

[Notes]
None