Stabilization of SVBONYBase::workerExposure

[jctk]

svbony_base.cpp, svbony_base.h

• SVBONYBase::grabImage disassembled and embedded in SVBONYBase::workerExposure
• Remove unused SVBONYBase::grabImage function

svbony_helpers.h

• Added processing in preparation for monochrome camera support (monochrome support not yet completed)
• Changed Luma to Luma 8 bit and Luma 16 bit

[knro]

This was tested on which camera models? did it include video streaming as well? aborted capture? changing formats?

[jctk]

I did the test excluding Video Stream. I tried it a little.
I have not edited the code for Video Stream before or since.

Testing information:

Camera model:

• SV405CC
• SV905C

Test Variations:

• Capture a preview and Abort capture.
• Start Framing (Looping)
• Sequence (Raw 8 x1 -> Raw 16 -> Luma 8 -> RGB 24
• Simultaneous exposure. "Start Framing (looping) by SV405CC" and "Guide loop by SV905C"

Video Streaming

• The color image is not correct before the still image is taken.
• I assume that this is because the code after refactoring does not determine the Bayer Pattern until a still image is taken.
  I want you to Fix this. I think it is due to the fact that I asked you to fill in the Bayer Pattern in advance but you decided not to do so.

[knro]

For streaming, if you capture an image first then stream, the colors are OK?

[jctk]

It looked that way to me.
I streamed the entire iPad screen in red and held it up to a telescope.
Before the still image was taken it was green and after it was taken it was red.

[jctk]

Could you please take care of Video Streaming after you handle this PR?

[jctk]

Thanks for merging the PR.