Feat/epix dark characterization common mode

[EPIX][DARK] add common mode correction.

Description

• Adds common mode correction to dark characterization notebook, improving the sensitivity to bad pixels.
• Noise and bad pixels maps are calculated independently for each ASIC.

How Has This Been Tested?

• Running the notebook
• Command line "xfel-calibrate EPIX100 DARK"

Relevant Documents (optional)

Types of changes

• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

Reviewers

notebooks/ePix100/Characterize_Darks_ePix100_NBC.ipynb

@@ -798,8 +798,6 @@
   }
  ],
  "metadata": {
-  "deletable": false,
-  "edittable": false,
   "kernelspec": {
    "display_name": "cal_venv",
    "language": "python",