Support simple parameter-binding scenarios in RequestDelegateGenerator

[captainsafia]

• Support parameter binding for well-known types (HttpContext, ClaimsUser, etc)
• Support parameter binding for simple types derived from the Route (FromRoute)/Query/Header (work in progress First pass at basic query string parameters. #46545 )
• Support parameter binding for parameters inferred from a route name

[JamesNK]

Remember to take into account AsParametersAttribute.

Also, FromRouteAttribute and friends can override the name.

[captainsafia]

Remember to take into account AsParametersAttribute.

Yep! It's tracked in #46336 since it supersedes some of the codegen associated with this.

Also, FromRouteAttribute and friends can override the name.

👍🏽