Add invocation id to module private data and add a Get-CurrentActivityForInvocation cmdlet#25

bachuv merged 4 commits intomainAzure/azure-functions-powershell-opentelemetry:mainfrom

andystaples/add-get-current-activity-cmdletAzure/azure-functions-powershell-opentelemetry:andystaples/add-get-current-activity-cmdletCopy head branch name to clipboard