CountryController: move to ru.mystamps.web.feature.country package.

Addressed to #927

No functional changes.

Author: php-coder

src/main/java/ru/mystamps/web/config/ControllersConfig.java

@@ -30,6 +30,7 @@
 import ru.mystamps.web.controller.*; // NOPMD: UnusedImports
 import ru.mystamps.web.feature.category.CategoryConfig;
 import ru.mystamps.web.feature.category.CategoryService;
+import ru.mystamps.web.feature.country.CountryController;
 
 @Configuration
 @RequiredArgsConstructor

src/main/java/ru/mystamps/web/controller/CountryController.java renamed to src/main/java/ru/mystamps/web/feature/country/CountryController.java

@@ -15,7 +15,7 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
-package ru.mystamps.web.controller;
+package ru.mystamps.web.feature.country;
 
 import java.io.IOException;
 import java.util.List;

src/main/java/ru/mystamps/web/feature/country/package-info.java

@@ -0,0 +1,4 @@
+/**
+ * Countries of the stamps.
+ */
+package ru.mystamps.web.feature.country;