- actionRestrictTurn will no longer "infer" the turn type
- restrictionType *must* be passed in - this is ok because the only code
we use this action (restrictions.js) already has inferred the type
- this simplifies what the action actually does
- moved the tests from restrict_turn.js that were really just testing
the restriction type inferrence over to intersection.js
(and added a few more tests for iD.osmInferRestriction)
