Rename spring-web-reactive to spring-webflux

Issue: SPR-15190

build.gradle

@@ -811,8 +811,8 @@ project("spring-web") {
 	}
 }
 
-project("spring-web-reactive") {
-	description = "Spring Web Reactive"
+project("spring-webflux") {
+	description = "Spring WebFlux"
 
 	dependencies {
 		compile(project(":spring-core"))

settings.gradle

@@ -19,7 +19,7 @@ include "spring-test"
 include "spring-tx"
 include "spring-web"
 include "spring-webmvc"
-include "spring-web-reactive"
+include "spring-webflux"
 include "spring-websocket"
 include "spring-framework-bom"