Change the original pinning instructions

[local-minimum]

On Project Compilation and Analysis there is currently no way to overwrite the initially set pinning formats of the different plates.

There exists fields on the respective models / instructions to supply this but API and UI needs extending.

[local-minimum]

The selected fixture (global or local) will say how many plates are actually available.

The API entry 5000/api/scan/instructions/<project_path> will give uri to actual scan instructions which will hold the original pinning suggested at scan start:

"pinning_formats": [
  [
    32,
    48
  ],
  [
    32,
    48
  ],
  [
    32,
    48
  ],
  [
    32,
    48
  ]
]

It will also contain exit uri to previous compilation instructions that will have similar "pinning_matrices". If this key is empty, it implies no changes were made. For analysis UI, to the above information there is also the api/analysis/instructions/<project_path> entry for if user has overridden pinning at this stage.

It should be noted that the user should only be allowed to be given the number of plates in the fixture used (either user-defined in the UI or in the compile.instructions. Because it is possible that the global fixture has been changed after the project's compilation it would be good to verify the plate number with the local fixture.