IGNITE-22696 Added libs to opensensus to expose prometheus metrics

[makalis]

Added opencensus-exporter-stats-prometheus and simpleclient_httpserver to opensensus module to make prometheus metrics work from the box without building any extra libs.

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[nva]

@makalis LGTM. Thanks for contribution!

[nva]

https://mtcga.gridgain.com/pr.html?serverId=apache&suiteId=IgniteTests24Java8_RunAll&branchForTc=pull/11426/head&action=Latest