Change Hash artifact to "File" artifact

[deadbits]

• File artifact will still be identified by its has but can then contain more additional data such as PE features automatically upon creation if file exists on disk
• If file not on disk, user can download it from VT (or other sources I'm working on adding for scanning / downloading files and reports)
• Users can run newly created YARA scan rule against file and store results
• Users can scan files against external services like VT, Hybrid Analysis, Anlyz, etc.
  • Modules for these need to be created

[deadbits]

In progress.. Artifacts are being re-worked so instead of one Artifact object each type will have it's own object with fields specific to it's type.