Add dependency jackson-module-kotlin

Auto-detection for Kotlin Jackson Module was added in Spring 4.3.0.RC1.
This commit provides the dependency management to handle the right
version.

Closes gh-5622

spring-boot-dependencies/pom.xml

@@ -672,6 +672,11 @@
 				<artifactId>jackson-module-jaxb-annotations</artifactId>
 				<version>${jackson.version}</version>
 			</dependency>
+			<dependency>
+				<groupId>com.fasterxml.jackson.module</groupId>
+				<artifactId>jackson-module-kotlin</artifactId>
+				<version>${jackson.version}</version>
+			</dependency>
 			<dependency>
 				<groupId>com.fasterxml.jackson.module</groupId>
 				<artifactId>jackson-module-parameter-names</artifactId>