Log process errors and exception details

[liliankasem]

When we get an error from the worker and process it through HandleWorkerProcessExitError, we don't get details about the exception, just that it's a
WorkerProcessExitException exception which is an exception we create OnProccssExited:

var processExitEx = new WorkerProcessExitException($"{Process.StartInfo.FileName} exited with code {Process.ExitCode}\n {exceptionMessage}");

Logs:

"Summary": Language Worker Process exited. Pid=3492.,
"Details": Microsoft.Azure.WebJobs.Script.Workers.WorkerProcessExitException : C:\Program Files (x86)\dotnet\dotnet.exe exited with code -532462766
.
.
.
"Summary": Handling WorkerErrorEvent for runtime:dotnet-isolated, workerId:dotnet-isolated. Failed with: Microsoft.Azure.WebJobs.Script.Workers.WorkerProcessExitException: C:\Program Files (x86)\dotnet\dotnet.exe exited with code -532462766
 ,
"Details": ,

User story: investigate and implement better logging for worker exceptions & log worker exceptions as errors