[21357] Remove TopicAttributes from public APIs and make it private in xmlparser

[Mario-DL]

Description

This PR:

• Removes TopicAttributes from public APIs in DDS and RTPS making usage of the new PublicationBuiltinTopicData and SubscriptionBuiltinTopicData.
• Moves TopicAttributes to the private folder and namespace eprosima::fastdds::xmlparser.
• Includes new get_*_buitin_topic_data() methods in DataReader and DataWriter
• Refactors some internal APIs (EDP, BuiltinProtocols,...) so they match the naming chain in snake_case.
• Includes an improvement in the discover server test to make it more resilient.

Contributor Checklist

• Commit messages follow the project guidelines.
• The code follows the style guidelines of this project.
• N/A Tests that thoroughly check the new feature have been added/Regression tests checking the bug and its fix have been added; the added tests pass locally
• Any new/modified methods have been properly documented using Doxygen.
• Any new configuration API has an equivalent XML API (with the corresponding XSD extension)
• NO: Changes are backport compatible: they do NOT break ABI nor change library core behavior.
• NO: Changes are API compatible.
• New feature has been added to the versions.md file (if applicable).
• New feature has been documented/Current behavior is correctly described in the documentation.
  • Related Discovery Server PR: [21357] Remove TopicAttributes from public APIs and make it private in xmlparser Discovery-Server#100
  • Related documentation PR: NOT NEEDED
  • Related Python PR: NOT NEEDED
  • Related Shapes Demo PR: NOT NEEDED
• N/A Applicable backports have been included in the description.

Reviewer Checklist

• The PR has a milestone assigned.
• The title and description correctly express the PR's purpose.
• Check contributor checklist is correct.
• N/A: If this is a critical bug fix, backports to the critical-only supported branches have been requested.
• Check CI results: changes do not issue any warning.
• Check CI results: failing tests are unrelated with the changes.

[MiguelCompany]

LGTM with green CI

[Mario-DL]

@MiguelCompany commits LGTM

[Mario-DL]

LGTM, ci full passed in 4c3d06e

[MiguelCompany]

• Full green CI on commit 4c3d06e.
• Later changes are not modifying the code.

Ready to merge!