Add CaptureLastError for ASP.NET

[lucas-zimerman]

Simplifies the process of capturing exceptions on ASP.NET. Additionally, it also flags the errors as unhandled.

Update #1411 once merged.

[codecov-commenter]

Codecov Report

Merging #1411 (c182e72) into main (2254df3) will increase coverage by 0.01%.
The diff coverage is 83.33%.

❗ Current head c182e72 differs from pull request most recent head 4428206. Consider uploading reports for the commit 4428206 to get more accurate results

@@            Coverage Diff             @@
##             main    #1411      +/-   ##
==========================================
+ Coverage   84.12%   84.13%   +0.01%     
==========================================
  Files         218      219       +1     
  Lines        7351     7357       +6     
  Branches     1415     1416       +1     
==========================================
+ Hits         6184     6190       +6     
- Misses        727      728       +1     
+ Partials      440      439       -1     

Impacted Files	Coverage Δ
...Sentry.AspNet/SentryHttpServerUtilityExtensions.cs	83.33% <83.33%> (ø)
src/Sentry/Exceptions/Mechanism.cs	85.29% <0.00%> (+2.94%)	⬆️

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[bruno-garcia]

Thanks Lucas