Revert "GH-1267 Deprecate RSocket module"

This reverts commit fc1b65e.

Author: olegz

pom.xml

@@ -160,6 +160,7 @@
 				<module>spring-cloud-function-deployer</module>
 				<module>spring-cloud-function-adapters</module>
 				<module>spring-cloud-function-integration</module>
+				<module>spring-cloud-function-rsocket</module>
 				<module>spring-cloud-function-kotlin</module>
 				<module>docs</module>
 			</modules>

spring-cloud-function-dependencies/pom.xml

@@ -76,6 +76,11 @@
 				<artifactId>spring-cloud-function-kotlin</artifactId>
 				<version>${project.version}</version>
 			</dependency>
+			<dependency>
+				<groupId>org.springframework.cloud</groupId>
+				<artifactId>spring-cloud-function-rsocket</artifactId>
+				<version>${project.version}</version>
+			</dependency>
 			<dependency>
 				<groupId>org.springframework.cloud</groupId>
 				<artifactId>spring-cloud-function-grpc</artifactId>