[AI] Fix #78: Add TCP segmentation support for TLS records

[ic0ns]

Summary

This PR implements TCP segmentation support for TLS records, allowing fine-grained control over how records are split across TCP segments. This addresses issue #78.

Changes

• Added TcpSegmentConfiguration class to define how records should be segmented
• Modified Record class to include optional TCP segmentation configuration
• Updated RecordLayer to handle TCP segmentation when sending records
• Added comprehensive unit tests for the segmentation functionality
• Created documentation and example workflow

Features

• Split TLS records at arbitrary byte offsets
• Configure delays between TCP segments
• Full XML serialization support for workflow traces
• Works with all existing TLS-Attacker features

Usage Example

<Record>
    <tcpSegmentation>
        <segment>
            <offset>0</offset>
            <length>3</length>
        </segment>
        <segment>
            <offset>3</offset>
        </segment>
        <segmentDelay>10</segmentDelay>
    </tcpSegmentation>
</Record>

This example splits the record header, sending the first 3 bytes (ContentType + Version) in one TCP segment and the rest in another segment, with a 10ms delay between them.

Test Plan

• Unit tests for TCP segmentation configuration
• Tests verify XML serialization/deserialization
• Build passes with mvn clean compile
• All tests pass
• Code formatted with spotless

Fixes #78