#1166 Integrate Jakarta Servlet API into Hartshorn Web

[GuusLieben]

Type of Change

• Enhancement (non-breaking change that affects existing code)
• Feature (non-breaking change that adds functionality)

Description

Replaces Hartshorn Web's initial custom request/response API with Jakarta's Servlet API. This adds additional support for servlets themselves within the execution chain of the web server.

How the Changes Have Been Tested

Work in progress

Checklist

• I have performed a self-review of my own code
• I have added tests that prove it is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Related issue number is linked in pull request title
• I have added documentation that describes my changes
• Any dependent changes have been merged and published in downstream modules
• I have rebased my branch on top of the latest develop branch

Related Issue

Closes #1166