Add a check-format-commit.sh script

Add a check-format-commit.sh script

Add a wrapper script to check-format.pl, which is capable of analyzing
commits rather than just a file.  for a provided commit this script:

1) runs check-format.pl on the files changed in the provided commit

2) filters the output of check-format.pl, only producing lines that
   match ranges of changed lines in those files

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Tom Cosgrove <tom.cosgrove@arm.com>
(Merged from https://github.com/openssl/openssl/pull/24806)