LPD: enable correction to run as standalone

Description

This MR aims to add support for the LPD mini detector, now being commissioned at the DETLAB.

This is done by enabling the LPD correction to run as standalone.
The current implementation is simple by copying changes from the Jungfrau Correction devices.

I've now opened this MR against the 202202-new-features in order to highlight the relevant changes.

How Has This Been Tested?

This is set up in the DETLAB as follows:

• The installation is set up on detonc@detlab-br-sys-cal-0:
  • /scratch/detonc/lpd_mini/karabo
  • Connect to the exflpcl149:5555 gui server
  • open the DETLAB_LPD project and navigate to DETLAB_LPD_MINI_CAL to find the correction device and its scene.
  • Specific to detlab, the correction device has the infiniband address set in the preview outputs.

Screenshots (if appropriate):

Types of changes

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

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly: to be done:
  • Document how to set the Pixels X in Data format and Constant retrieval parameters;
  • Document that Standalone mode to be set to True.

@hammerd