Add log mode to Yara.Glob to output String.Data

[mgreen27-r7]

We reguarly use Yara.Glob to hunt for IOC lines in log files. Currently the Yara artifacts use the upload feature to upload hit for presentation for standard yara use cases.

It i often useful when running yara over logs to post process the data and push out a yara rule that collects the whole log line so we can see important context (like IP or User-Agent). For this use case a simple String.Data output would be best instead of uploading the hit.