A8Y8/Y8 Bitmap extraction

[DG5312]

ms30\shaders\default_bitmaps\bitmaps\clouds_256.bitmap looks broken in various programs like Photoshop CS6, XnConverter and noesis just move the diffuse on red channel and keep alpha channel.

Works on GIMP 2.10.36, which is weird (?) idk but works
This format can be changed to 32 bit when is exported to dds?
(that format is supported whitout issues on the programs mentioned above)
Photoshop CS6-XnConverter-Noesis-GIMP

[DG5312]

also, some cubemaps are broken on extraction, like:
objects\weapons\pistol\plasma_pistol\plasma_pistol\material_6\bitmap_5.bitmap