Add new pyvex modules to apidoc

[twizmwazin]

angr/pyvex#294

[github-actions[bot]]

Unit Test Results

43 tests   40 :heavy_check_mark:  7m 14s :stopwatch: 10 suites    0 :zzz: 10 files      0 :x:  3 :fire:

For more details on these errors, see this check.

Results for commit 7345e70c.

:recycle: This comment has been updated with latest results.