This CR is to address the following:

1) the DEPLOY_PERF_LOG env. variable setting isn't working with the new java plugin.
The env. variable allows the user to specify a file name with full path so that the deployment perfomance data will be written to the file.
e.g. set DEPLOY_PERF_LOG=c:\temp\deploy_perf.txt

2) we need to organize the data in such a way that it's can easily be understood by anyone viewing the performance data log.
A proposed format of the log consists of 3 columns - first column is the event, second column is the elapsed time, third column is the delta time.