Towards #984

Opening this PR to start a discussion for how we want to format test cases for database query parsing and sanitization.

Each test case includes the following fields

• A name identifying the test case
• A query statement representing the input
• db.system.name indicates which dialect that the test case targets. A value of other_sql indicates it is applicable to all dialects.
• An array of valid db.query.text values.
  • For example, the specification states that IN clauses MAY be collapsed. So, both IN (?) and IN (?,?,?) are valid.
• db.query.summary represents what db.query.summary should equal

For this first iteration I would like to settle on the format for presenting these test cases. In follow ups we can expand the test cases and also handle additional idiosyncrasies of other dialects.