add placeholder for platform_json_path

[danielsf]

This is a very trivial pull request. It just creates a placeholder for the path to the platform json file so that, as discussed in #535, we can then modify the ruby strategy to provide the path to the platform.json without breaking the production pipeline.

Once this has been merged and the ruby strategy has been updated, we can add the logic to use the contents of platform.json to generate the stitched full field images being requested by the ophys team.

[codecov[bot]]

Codecov Report

Merging #544 (4dd09f9) into main (9a48db7) will decrease coverage by 1.36%. The diff coverage is 96.29%.

@@            Coverage Diff             @@
##             main     #544      +/-   ##
==========================================
- Coverage   97.95%   96.59%   -1.37%     
==========================================
  Files         107      106       -1     
  Lines        8159     8186      +27     
  Branches      731      732       +1     
==========================================
- Hits         7992     7907      -85     
- Misses         97      207     +110     
- Partials       70       72       +2     

Flag	Coverage Δ
event_detection_tests	?
general_tests	96.59% <96.29%> (-0.02%)	:arrow_down:

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...scope_splitting_cli/test_mesoscope_splitter_1x6.py	100.00% <ø> (ø)
...scope_splitting_cli/test_mesoscope_splitter_2x4.py	100.00% <ø> (ø)
...ng_cli/test_mesoscope_splitter_2x4_with_repeats.py	100.00% <ø> (ø)
...scope_splitting_cli/test_mesoscope_splitter_4x2.py	100.00% <ø> (ø)
...plitting_cli/test_mesoscope_splitter_4x2_floats.py	100.00% <ø> (ø)
...ng_cli/test_mesoscope_splitter_4x2_with_repeats.py	100.00% <ø> (ø)
tests/modules/mesoscope_splitting_cli/conftest.py	96.65% <96.00%> (-0.19%)	:arrow_down:
...dules/mesoscope_splitting/test_full_field_utils.py	100.00% <100.00%> (ø)
.../modules/mesoscope_splitting/test_roi_insertion.py	97.93% <100.00%> (ø)
tests/modules/mesoscope_splitting_cli/utils.py	100.00% <100.00%> (ø)
... and 5 more

[danielsf]

Turns out, I'm just implementing the logic now. I'll close this PR and re-open when it is ready.