Feature Request: Load multiple Event logs for two scenarios

[chcart]

2 scenarios:
-Loading multiple logs from same source (May not need a Source computer column)
-Loading multiple logs from different sources. (Would def need a Source computer column)

[bill-long]

Fixed by #121. File menu now lets you add more logs to the same view. Use the View menu to toggle Log Name and Computer Name columns to help make sense of it. Releasing this in a new build shortly.