Unbreak master

[ttung]

1. Normalize the run(..) method with the contract specified in SpotFinderAlgorithmBase.
2. Flag an error if someone tries to specify a blobs_image with LocalSearchBlobDetector.
3. Temporarily provide a image_to_spots method which the SpotFinderAlgorithmBase requires.

Test plan: make -j fast

[ambrosejcarr]

Looks good if green.

[codecov-io]

Codecov Report

Merging #1148 into master will increase coverage by 20.77%.
The diff coverage is 66.66%.

@@            Coverage Diff             @@
##           master   #1148       +/-   ##
==========================================
+ Coverage   67.63%   88.4%   +20.77%     
==========================================
  Files         132     132               
  Lines        4903    4907        +4     
==========================================
+ Hits         3316    4338     +1022     
+ Misses       1587     569     -1018

Impacted Files	Coverage Δ
...fish/spots/_detector/local_search_blob_detector.py	94.06% <66.66%> (+61.61%)	⬆️
starfish/spots/_detector/blob.py	96.15% <0%> (+1.92%)	⬆️
starfish/pipeline/pipelinecomponent.py	92.85% <0%> (+2.38%)	⬆️
...tarfish/image/_filter/zero_by_channel_magnitude.py	100% <0%> (+2.7%)	⬆️
...mage/_registration/_learn_transform/translation.py	97.05% <0%> (+2.94%)	⬆️
.../spots/_pixel_decoder/combine_adjacent_features.py	90.42% <0%> (+3.19%)	⬆️
starfish/imagestack/parser/tileset/_parser.py	84.94% <0%> (+3.22%)	⬆️
starfish/spacetx_format/validate_sptx.py	83.33% <0%> (+3.7%)	⬆️
starfish/types/_constants.py	100% <0%> (+3.92%)	⬆️
starfish/_display.py	26.66% <0%> (+4.44%)	⬆️
... and 62 more

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[ttung]

@ambrosejcarr TRAILING WHITESPACE!! :)