feat(presence): Raise events for presence notifications

[tylerbutler]

Work in progress. Draft of presence notification events.

[tylerbutler]

disabled for easier testing

[msfluid-bot]

Code Coverage Summary

↑ packages.framework.presence.src:
Line Coverage Change: 6.91%    Branch Coverage Change: -1.87%

Metric Name	Baseline coverage	PR coverage	Coverage Diff
Branch Coverage	83.87%	82.00%	↓ -1.87%
Line Coverage	61.93%	68.84%	↑ 6.91%

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Baseline commit: e432720
Baseline build: 303572
Happy Coding!!

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