v1.32.0

Changes in RPC/ADT macro engines:

• @reifyEncodedAnnot removed, allowed @composite parameters to be @optional instead
• introduced @reifyDefaultValue for reifying Scala-level default values of case class fields
• introduced overloadedOnly flag for @rpcNamePrefix which causes it to be used only for overloads of RPC methods
• introduced ImplicitNotFound typeclass for customizing implicit-not-found compilation errors for arbitrary types

REST framework:

• support for headers in HTTP responses (requires custom serialization to RestResponse)
• automatic handling of HEAD and OPTIONS requests
• operationId in generated Operation objects now defaults to RPC methods plain name, without the HTTP method prefix (e.g. soSomething instead of post_doSomething) unless the method is overloaded.
• nicer compilation error messages for various missing REST-related implicits
• @operationIdPrefix annotation for prefix methods
• operation adjusters can now be specified for prefix methods - will apply to all operations under a prefix method
• introduced new type of adjuster: PathItemAdjuster for adjusting OpenAPI PathItem objects
• introduced new adjuster annotations: @operationId, @nullable, @tags, @bodyDescription, @responseDescription, @pathDescription, @summary, @pathSummary, @title, @schemaDescription
• configurable async context timeout and buffer size for Jetty-based client & server
• OpenAPI generation now accepts predefined Components
• various minor fixes and improvements

GenCodec:

• compilation errors raised for missing dependencies are positioned on case class parameters which cause these errors
• GenCodec.Auto removed