Added a method createTestFilePath to the test file utils.
Added a method createTestFilePath to the test file utils.

This method created a valid file with a path that points to temp file. The difference between this and the earlier createTestFile is that this method doesn't create an existing file.
splunk/splunk-shuttl,splunk/splunk-shuttl,splunk/splunk-shuttl,splunk/splunk-shuttl,splunk/splunk-shuttl,splunk/splunk-shuttl