Update dotnet worker to handle the additional command line args with "functions-" prefix

[kshyju]

Update dotnet worker to handle the additional command line args with "functions-" prefix. See Azure/azure-functions-host#9504 for details.

Example of command line argument string host will send to worker process.

-host localhost --port 80 --workerId testWorkerId --requestId testId --grpcMaxMessageLength 2147483647 --functions-uri http://localhost:80 --functions-workerid testWorkerId --functions-requestid testId --functions-grpcmaxmessagelength 2147483647

Need to update managed code and FunctionsNetHost.

• Updating FunctionsNetHost to handle the new "functions-" prefix cmdline args. #1901
• Handle new command line arguments with "functions-" prefix #1897

[kshyju]

Changes are merged. Closing this item.