Try/catch wrappers for SoupX and Scrublet

[mingl1997]

Fixes:
-Try/catch wrapper for SoupX in the event that no marker genes are found
-Try/catch wrapper for Scrublet in the event of an unexpected crash
To do:
-Isolate combineSCE bug (inner join?) and fix

[codecov]

Codecov Report

Attention: 111 lines in your changes are missing coverage. Please review.

Comparison is base (8f3e43f) 52.77% compared to head (8555c7a) 52.75%.

❗ Current head 8555c7a differs from pull request most recent head 4b867a3. Consider uploading reports for the commit 4b867a3 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##            devel     #719      +/-   ##
==========================================
- Coverage   52.77%   52.75%   -0.02%     
==========================================
  Files          79       79              
  Lines       12696    12700       +4     
==========================================
  Hits         6700     6700              
- Misses       5996     6000       +4     

Files	Coverage Δ
R/runSoupX.R	0.00% <0.00%> (ø)

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