- `DefaultInlineConstraintResolver` has no need of a `IServiceProvider`
nits:
- add doc comments for changed `DefaultInlineConstraintResolver` ctor
- let VS add a dev server port to sample's .kproj
- add debugSettings.json and .vs/ to .gitignore
The properties on TemplateRoute for DataTokens and Defaults are now
readonly. This prevents modifying these collections in a way that
invalidates cached data, or violates thread-safety.
To do the same for constraints, this change includes a substantial refactor
of how we realize inline constraints, and moves the constraint resolver
out of the parsing phase.
This allow creates a builder for the constraint map, that will make it
easier to implement features like optional constraints, and is reusable
for anyone building their own type of routing system.