feat(controller): Add authtoken public id to request context

This allows for http middleware handler functions that run later in the
handler function stack to have access to the extracted auth token public
id.

internal/daemon/controller/handler.go

@@ -411,6 +411,7 @@ func wrapHandlerWithCommonFuncs(h http.Handler, c *Controller, props HandlerProp
 		}
 
 		requestInfo.PublicId, requestInfo.EncryptedToken, requestInfo.TokenFormat = auth.GetTokenFromRequest(ctx, c.kms, r)
+		ctx = context.WithValue(ctx, globals.ContextAuthTokenPublicIdKey, requestInfo.PublicId)
 
 		if info, ok := event.RequestInfoFromContext(ctx); ok {
 			// piggyback some eventing fields with the auth info proto message