Rename package: validation -> annotation

Signed-off-by: Pekka Helenius <fincer89@hotmail.com>

bookstore/src/main/java/com/fjordtek/bookstore/validation/CurrentYear.java → bookstore/src/main/java/com/fjordtek/bookstore/annotation/CurrentYear.java

@@ -1,6 +1,6 @@
 //Pekka Helenius <fincer89@hotmail.com>, Fjordtek 2020
 
-package com.fjordtek.bookstore.validation;
+package com.fjordtek.bookstore.annotation;
 
 import java.lang.annotation.Documented;
 import java.lang.annotation.Retention;

bookstore/src/main/java/com/fjordtek/bookstore/validation/CurrentYearValidator.java → bookstore/src/main/java/com/fjordtek/bookstore/annotation/CurrentYearValidator.java

@@ -1,6 +1,6 @@
 //Pekka Helenius <fincer89@hotmail.com>, Fjordtek 2020
 
-package com.fjordtek.bookstore.validation;
+package com.fjordtek.bookstore.annotation;
 
 import java.time.Year;