[DRAFT] BIO datagram functions

[justsmth]

Issues:

Resolves #ISSUE-NUMBER1
Addresses #ISSUE-NUMBER2

Description of changes:

Describe AWS-LC’s current behavior and how your code changes that behavior. If there are no issues this pr is resolving, explain why this change is necessary.

Call-outs:

Point out areas that need special attention or support during the review process. Discuss architecture or design changes.

Testing:

How is this change tested (unit tests, fuzz tests, etc.)? Are there any testing steps to be verified by the reviewer?

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license and the ISC license.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 74.27822% with 98 lines in your changes missing coverage. Please review.

Project coverage is 78.75%. Comparing base (b8ab042) to head (b57a265).

Files with missing lines	Patch %	Lines
crypto/bio/bio_socket_test.cc	70.39%	38 Missing and 15 partials ⚠️
crypto/bio/dgram.c	76.96%	44 Missing ⚠️
crypto/bio/connect.c	66.66%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2321      +/-   ##
==========================================
- Coverage   78.76%   78.75%   -0.01%     
==========================================
  Files         620      621       +1     
  Lines      107864   108192     +328     
  Branches    15320    15359      +39     
==========================================
+ Hits        84959    85208     +249     
- Misses      22251    22316      +65     
- Partials      654      668      +14     

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