Create StringConcatenationPerformanceMeasurer.java

During one of my projects, I was working on creating a large CSV file. The file had about 100000+ rows with 21 columns. My 4GB JVM wasn't performing well enough. I then compared my string concatenation code and found that there are ways to the concatenation in really bad way. This mini project allowed me to compare performance. Hope you will find it useful too. :)

If interested in seeing the graphs from these comparisons, please checkout my blog:
http://palshi-tech.blogspot.com/2012/07/string-concatenation-performance.html