added MIT license file
added MIT license file

buluma/newrelic_aws_cloudwatch_plugin,rsyed83/newrelic_bind_agent,newrelic-platform/newrelic_example_plugin,airbnb/newrelic_aws_cloudwatch_plugin,botlink/newrelic_aws_cloudwatch_plugin,getoutreach/newrelic_pivotal_agent,mozimos/newrelic_aws_cloudwatch_plugin,Yuji-Yamamoto-Recruit/newrelic_aws_cloudwatch_plugin,newrelic-platform/newrelic_aws_cloudwatch_plugin,pivotalsoftware/newrelic_pivotal_agent