feat: add "full" SSE support

[KATT]

No description provided.

[github-actions]

PR Compliance Checks

Thank you for your Pull Request! We have run several checks on this pull request in order to make sure it's suitable for merging into this project. The results are listed in the following section.

Issue Reference

In order to be considered for merging, the pull request description must refer to a specific issue number. This is described in our Contributing Guide. We are closing this pull request for now but you can update the pull request description and reopen the pull request.
The check is looking for a phrase similar to: "Fixes #XYZ" or "Resolves #XYZ" where XYZ is the issue number that this PR is meant to address.

[codecov]

Codecov Report

Merging #68 (3aa45ce) into main (24108bc) will decrease coverage by 0.08%.
Report is 4 commits behind head on main.
The diff coverage is 95.98%.

❗ Current head 3aa45ce differs from pull request most recent head 0477cc1. Consider uploading reports for the commit 0477cc1 to get more accurate results

@@            Coverage Diff             @@
##             main      #68      +/-   ##
==========================================
- Coverage   97.95%   97.88%   -0.08%     
==========================================
  Files          30       30              
  Lines        1466     1604     +138     
  Branches      171      179       +8     
==========================================
+ Hits         1436     1570     +134     
- Misses         28       33       +5     
+ Partials        2        1       -1     

Flag	Coverage Δ
unit	97.88% <95.98%> (-0.08%)	⬇️

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

Files	Coverage Δ
src/async/asyncErrors.ts	88.23% <100.00%> (+1.87%)	⬆️
src/async/asyncTypes.ts	100.00% <100.00%> (ø)
src/async/createTsonAsync.ts	100.00% <100.00%> (ø)
src/async/handlers/tsonAsyncIterable.ts	100.00% <100.00%> (ø)
src/async/iterableUtils.ts	100.00% <100.00%> (ø)
src/index.ts	100.00% <100.00%> (ø)
src/internals/testUtils.ts	97.08% <ø> (+0.93%)	⬆️
src/async/deserializeAsync.ts	98.64% <97.38%> (+0.72%)	⬆️
src/async/serializeAsync.ts	94.75% <84.61%> (-1.62%)	⬇️