Fixed CSV writing issue in Brain Algorithm: Added escapechar and quoting options for datasets with special characters

[jcordon5]

Problem:

This PR addresses an issue in the Brain module when writing structured log data to a CSV file. The error encountered is:

Error: need to escape, but no escapechar set

The error occurs when parsing datasets that contain special characters or quotes. By default, pandas.to_csv() does not set an escape character, which leads to a failure when special characters are present in the data.

Solution:

The fix involves explicitly setting the following options when calling to_csv() in generateresult method of LogParser class:

• escapechar='\\': Specifies the escape character (\) to handle special characters correctly.
• quoting=1 (csv.QUOTE_MINIMAL): Ensures that fields containing special characters (such as commas, quotes, or newlines) are wrapped in quotes.

Checklist:

• Code tested with large datasets containing special characters that previously caused the error.
• Changes verified to be backward-compatible.
• Structured logs (_structured.csv) and event templates (_templates.csv) were successfully written without encountering the escapechar error.