Support of Lombok annotated ConfigurationProperties

Previously, no configuration properties were discovered on a class using
lombok instead of regular getters/setters.

This commit adds a support for some of the lombok annotations,
specifically that is @Data, @Getter and @Setter. Provides the same
semantic as what lombok is generating.

Closes gh-2114

spring-boot-parent/pom.xml

@@ -191,6 +191,11 @@
 				<artifactId>json</artifactId>
 				<version>${json.version}</version>
 			</dependency>
+			<dependency>
+				<groupId>org.projectlombok</groupId>
+				<artifactId>lombok</artifactId>
+				<version>1.12.6</version>
+			</dependency>
 			<dependency>
 				<groupId>org.zeroturnaround</groupId>
 				<artifactId>zt-zip</artifactId>