fix: improve where float flap detents broke tests

- Ensure that we have a float before checking with is_integer()
- Patch AirspeedWithFlapMax.NAME_VALUES with test values in tests.
fix: tests: @patch incorrect after module moved.
fix: tests: change test superclass - mock errors

Due to a change in the implementation of these gross weight key point
values to use repair_mask, the test_derive_mocked() test case was
failing. This test has been removed as it can no longer apply.
parameters: fix configuration to match model info.
Merge branch 'master' of github.com:FlightDataServices/FlightDataAnalyzer