Onboard IceVision inputs to new object

[ethanwharris]

What does this PR do?

Part of #961

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[codecov]

Codecov Report

Merging #973 (10af852) into master (41d97b5) will decrease coverage by 0.06%.
The diff coverage is 66.05%.

@@            Coverage Diff             @@
##           master     #973      +/-   ##
==========================================
- Coverage   88.33%   88.26%   -0.07%     
==========================================
  Files         250      250              
  Lines       13120    13155      +35     
==========================================
+ Hits        11589    11611      +22     
- Misses       1531     1544      +13     

Flag	Coverage Δ
unittests	88.26% <66.05%> (-0.07%)	⬇️

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

Impacted Files	Coverage Δ
flash/core/data/utilities/paths.py	35.55% <23.68%> (+2.22%)	⬆️
flash/image/instance_segmentation/data.py	91.11% <81.81%> (+1.11%)	⬆️
flash/image/detection/data.py	93.85% <88.46%> (+0.10%)	⬆️
flash/image/keypoint_detection/data.py	91.42% <90.00%> (+1.42%)	⬆️
flash/core/integrations/icevision/data.py	93.02% <90.47%> (+6.74%)	⬆️
flash/image/detection/cli.py	100.00% <100.00%> (ø)
flash/image/instance_segmentation/cli.py	100.00% <100.00%> (ø)
flash/image/keypoint_detection/cli.py	100.00% <100.00%> (ø)
flash/core/integrations/fiftyone/utils.py	59.18% <0.00%> (+4.08%)	⬆️

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[SeanNaren]

Looks great, happy with the changes your making as discussed offline :)