Show matched strings in matched samples

[ITAYC0HEN]

Description

When looking for interesting samples in the internal dataset, it is great to see the context in which a given sample was found. By showing the matched strings when possible (in context, maybe with partial 32* bytes of hexdump) you will provide the user meaningful information. This can be done via tooltip.

This info can be retrieved from yara -sL

[msm-code]

For now, let's just add matched strings (let's leave tooltips as a potential future improvement). This can be readily extracted from yara API, and it should be easy to show in the UI

[ITAYC0HEN]

sounds good. The context is important but can be added later or something.
As for the implementation, make sure only to show it upon user desire (e.g hovering)

[msm-cert]

Also known as "the oldest open issue in mquery"

Split into two tasks:

• Add the information about match context to the database #395
• Show the information about matches in the frontend. #396