Update annotation on Malware_Subject/Findings_Bundles for clarity

[ikiril01]

The current annotation for the Findings_Bundles element in the Malware Subject is rather confusing. In particular, this statement is rather a misnomer:
"The term “Findings Bundles” is used rather than simply “Bundles” to imply that
the content was derived from analysis".

Clearly, all content captured in a Bundle would be derived from some form of analysis. What we're intending to state here is that the Findings Bundles are intended to capture only the true analytical findings for the malware instance and NOT metadata or other secondary data such as labels assigned to the sample, the tools that were used in the analysis, etc.

[ikiril01]

No longer relevant given #104.