Add descriptive logs to starter kits

[yash-puligundla]

• Any “throw new exception” (ex: line 95 in wes) should have an "error" log that prints the exception stack trace/ message before throwing the generic exception (like “Could not load WES run log”)
• Add "debug" level logs to commonly/ most used pieces of code. I would start with controllers. The idea is to be able to figure out the point/ region of code where an error might happen & for which object_id or input parameters, so that it's easier to reproduce this error while debugging.
• This is totally optional and I would leave it to the very end. I have implemented struct logs that direct all the logs into a file. (Feel free to implement/ignore this as it is not a priority feature for the logs issue you are working on) - https://github.com/ga4gh/ga4gh-testbed-api/blob/develop/src/main/java/org/ga4gh/testbed/api/utils/logging/TestbedLoggingUtil.java

[muhd360]

@yash-puligundla can i take up this issue??