added option for disabling HTML Sanitize

[carliblaz]

Description of Changes

Please provide a summary of the changes, including:

• added disableSanitize: false # set to 'true' to disable Sanitize HTML, set to false to enable Sanitize HTML; (can lead to injections in HTML)
• Some users uses this on local boxes, and uses Google Fonts, and base64 image src.

General

• I have read the Contribution Guidelines
• I have read the Stirling-PDF Developer Guide (if applicable)
• I have read the How to add new languages to Stirling-PDF (if applicable)
• I have performed a self-review of my own code
• My changes generate no new warnings

Documentation

• I have updated relevant docs on Stirling-PDF's doc repo (if functionality has heavily changed)
• I have read the section Add New Translation Tags (for new translation tags only)

Testing (if applicable)

• I have tested my changes locally. Refer to the Testing Guide for more details.