chore: backport multiple PRs as a single PR from experimental-develop branch

[Rosme]

This PR is bringing into 1.1.0 the network metrics implementation inside the UTP Adapter to gather data from the transport:

• Network Metrics Pipeline Stage to extract data from transport layer
• Extraction of RTT metrics from transport
• Extraction of Packet count from transport
• Dispatching of said metrics into Netstats
• Modification to test framework to support UTP Transport
• Added Symbol Define based on tools version and presence of UTP Adapter

Original JIRA
MTT-1659
MTT-1854
MTT-1855
MTT-1655
MTT-1653

Original PRs
#1493
#1510
#1583
#1610
#1652

Testing and Documentation

• Includes unit tests.
• No documentation changes or additions were necessary.

[NoelStephensUnity]

Other than the one comment about the version define expression being pre,3 (should it be pre.4?), it looks good.

[simon-lemay-unity]

Isn't this redundant with the check below?

[Rosme]

It is yes. But it's also clear that you need TOOLS PRE 4 or higher. Eventually we will remove that check probably and I wouldn't want us to forget to put the TOOLS check. But if you rather have just the TOOLS_PRE_4, I can do that

[simon-lemay-unity]

I don't have any strong opinion on the matter, honestly. If the pre.4 check is meant to go away at some point, then I agree leaving the more generic tools check is safer.