ComplexRoundabout more granular error messaging

[vladlemberg]

Description
ComplexRoundabout validation combining multiple errors into single ComplexEntityError. This approach makes more difficult adding an AutoFix suggestion to MalformedRoundaboutCheck.

Proposal
Break ComplexEntityError into individual Errors:
Before
WRONG_WAY_INVALIDATION = "This roundabout is going the wrong direction, or has been improperly tagged as a roundabout.";
After
WRONG_WAY_INVALIDATION = "This roundabout is going the wrong direction";
WRONG_WAY_TAGGING = "This way has been improperly tagged as a roundabout.";

Example 1
Wrong Way
Autofix suggestion - reverse geometry

Example 2
Wrong tagging
Autofix suggestion - remove junction=roundabout tag.

Currently both cases falls with the same error message and can't be differentiated for Autofix implementation.

[Bentleysb]

@vladlemberg, the second example only fails with the WRONG_WAY_INVALIDATION? It looks like it should also have an INCOMPLETE_ROUTE_INVALIDATION, as it does not form a closed route.