Fix on-demand calculation of BinaryMaskCollection's regionprops

[ttung]

Through most ways of constructing BinaryMaskCollections, we calculate region properties and store them with our BinaryMaskCollection. However, on a few code paths (notably from_binary_arrays_and_ticks and from_fiji_roi_set), we calculate the regionprops on demand.

This code path was not properly tested and we were not generating the regionprops correctly. This fixes the problem and adds a quick sanity test.

Test plan: test passes with changes, does not otherwise.

[codecov-io]

Codecov Report

Merging #1819 into master will decrease coverage by 0.03%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master    #1819      +/-   ##
==========================================
- Coverage   90.11%   90.08%   -0.04%     
==========================================
  Files         254      254              
  Lines        9451     9461      +10     
==========================================
+ Hits         8517     8523       +6     
- Misses        934      938       +4

Impacted Files	Coverage Δ
...ary_mask/test/test_from_binary_arrays_and_ticks.py	100% <100%> (ø)	⬆️
...tarfish/core/morphology/binary_mask/binary_mask.py	95.15% <100%> (+1.37%)	⬆️
...tarfish/core/test/test_multiprocessing_workflow.py	94.87% <0%> (-5.13%)	⬇️
starfish/core/_version.py	45.32% <0%> (-1.8%)	⬇️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 5508316...54ea38d. Read the comment docs.