* add SQLQuery class with tests for safe queries and non-safe tautology attacks
* add test for union query injections
* split .apply calls to newline
* add tests for comment attacks
* remove double underscore
* extract complex children check to variable
* inherit from object because I'm not a lamer
Co-Authored-By: rauchy <omer@rauchy.net>
* simplify cognitive complexity
* check that additional columns are not injected
* detect appended queries
* inline .apply calls
* move SQLQuery to it's own module
* move SQLQuery tests to their own module
* serialize SQLQuery instances
* raise an exception when attempting to serialize an unsafe query
* queries without parameters are safe
* remove redundant parentheses
* use cached properties
* rename SQLInjectionException to SQLInjectionError
* support multiple word params and param negations
* refactor out methods that don't involve any state
* don't cache text()
* reduce cognitive complexity
