Add a table to track the checks for C11 undefined behavior

[kroening]

This adds an HTML table of Appendix J.2 of N1570 with a column "checked" to track the instances of C11 undefined behavior that CBMC can check.

• Each commit message has a non-empty body, explaining why the change was made.
• n/a Methods or procedures I have added are documented, following the guidelines provided in CODING_STANDARD.md.
• n/a The feature or user visible behaviour I have added or modified has been documented in the User Guide in doc/cprover-manual/
• n/a Regression or unit tests are included, or existing tests cover the modified code (in this case I have detailed which ones those are in the commit message).
• n/a My commit message includes data points confirming performance improvements (if claimed).
• My PR is restricted to a single feature or bugfix.
• n/a White-space or formatting changes outside the feature-related changed lines are in commits of their own.

[codecov]

Codecov Report

Patch coverage has no change and project coverage change: +0.07% 🎉

Comparison is base (2daecc3) 78.85% compared to head (3600dc5) 78.92%.
Report is 6 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #7880      +/-   ##
===========================================
+ Coverage    78.85%   78.92%   +0.07%     
===========================================
  Files         1699     1699              
  Lines       195399   195399              
===========================================
+ Hits        154075   154216     +141     
+ Misses       41324    41183     -141     

see 11 files with indirect coverage changes

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[TGWDB]

Great!