[22814] Improve DS routines (backport #5764)

[mergify]

Description

This PR aims to improve efficiency of DS routines by reducing the number of messages sent (Data(p), Data(r) and Data(w)). It does so by:

• Avoiding re-sending the server's Data(p) to relevant participants every time its own Data(p) is added to the pdp_queue (when a new client is discovered). Now a direct message to the new discovered client is sent instead of adding the server's Data(p) to the queue, which led to multiple sends to all direct clients.
• Sending just one Data(p) and Data(r/w) to direct clients by considering a three-state value (unmatched, sent & matched) for DiscoveryParticipantsAckStatus instead of just a boolean. In this way the Discovery DB avoids re-sending repeated data when processing topics.

Related PR:

• [22814] Improve DS routines Discovery-Server#115

@Mergifyio backport 3.1.x 2.14.x 2.10.x

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

• N/A Any new/modified methods have been properly documented using Doxygen.

• N/A Any new configuration API has an equivalent XML API (with the corresponding XSD extension)

• Changes are backport compatible: they do NOT break ABI nor change library core behavior.

• Changes are API compatible.

• N/A New feature has been added to the versions.md file (if applicable).

• N/A New feature has been documented/Current behavior is correctly described in the documentation.

• 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.
• 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.

---

This is an automatic backport of pull request #5764 done by [Mergify](https://mergify.com).

[mergify]

Cherry-pick of 0fa7b1e has failed:

On branch mergify/bp/2.14.x/pr-5764
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You are currently cherry-picking commit 0fa7b1eb.
  (fix conflicts and run "git cherry-pick --continue")
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  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   src/cpp/rtps/builtin/discovery/database/DiscoverySharedInfo.cpp
	modified:   src/cpp/rtps/builtin/discovery/participant/PDPServer.hpp
	modified:   test/blackbox/api/dds-pim/PubSubParticipant.hpp
	modified:   test/blackbox/common/BlackboxTestsDiscovery.cpp

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   src/cpp/rtps/builtin/discovery/database/DiscoveryDataBase.cpp
	both modified:   src/cpp/rtps/builtin/discovery/database/DiscoveryDataBase.hpp
	both modified:   src/cpp/rtps/builtin/discovery/database/DiscoveryParticipantsAckStatus.cpp
	both modified:   src/cpp/rtps/builtin/discovery/database/DiscoveryParticipantsAckStatus.hpp
	both modified:   src/cpp/rtps/builtin/discovery/database/DiscoverySharedInfo.hpp
	both modified:   src/cpp/rtps/builtin/discovery/participant/PDPServer.cpp

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