Extend Utilities and Testing to Perform Snapshots

[NyanKiyoshi]

Is your feature request related to a problem? Please describe.
We would like to be able to record a bench session to generate snapshot files to be able to compare diffs and analyze SQL queries and query count.

Describe the solution you'd like
Generate a snapshot per test per module. This would be in a YAML format in order to make it more readable (human-friendly) for pull request reviewers but also for developers locally.

We would also include EXPLAIN queries, as part of #41.

We would include:

• The SQL query without the values – allows to detect issues and huge amount of parameters
• The query count in the root (top)

Which would look something like:

count: 12
duplicates: 8
queries:
  - sql: >
      SELECT foo FROM bar WHERE id IN (?, ?, ?, ?, ?, ?)