Add support for LaTeX \verb|...| command in pattern matching

[Aphcity]

This pull request introduces changes to support verbatim patterns in LaTeX files. The most important changes include adding the VERB constant to the regexes, updating the Pattern struct to track verbatim patterns, and modifying the logic to handle verbatim patterns in the get_verbatim_diff function.

Changes to support verbatim patterns:

• src/regexes.rs: Added the VERB constant to match LaTeX \verb|...| patterns and updated the SPLITTING array to include the verbatim pattern. Also added a new regex RE_VERB to capture content inside \verb|...|. [1] [2]
• src/format.rs: Updated the Pattern struct to include a contains_verbatim field and modified the impl Pattern block to set this field based on the presence of verbatim patterns. [1] [2] [3]
• src/verbatim.rs: Modified the get_verbatim_diff function to return 1 if the pattern contains verbatim patterns.

Test updates:

• tests/verbatim/source/verbatim.tex and tests/verbatim/target/verbatim.tex: Added test cases for verbatim patterns to ensure the changes work as expected.

Result:

Should close issue #83

[Aphcity]

Should close #83

[WGUNDERWOOD]

Thanks very much for this PR! It seems that some tests are failing at the moment -- might you be able to look into this?