[Generic][Shimadzu] Dynamic flat-field characterization and correction for MHz microscopy

This implements:

1. The characterization of dark and flat fields of Shimadzu HPVX2 images
2. The correction for Shimadzu HPVX2 images by applying offsets subtraction and dynamic flat-field correction.

Depends on the https://github.com/sarlotabirnsteinova/OnlineVisualization

This is needed for MHz microscopy at SPB

Features:

• Split on sequence files by 200 trains, ignoring original splitting
• Creates new source name SPB_EHD_MIC/CAM/HPVX2_1:daqOutput -> SPB_EHD_MIC/CORR/HPVX2_1:output

Reports:

• characterization report: dark_runs_1_2_v0.pdf
• correction report: r0003.pdf

cc @schmidtp