Move site package to one level up

[0pdd]

The puzzle 927-5e01dc83 from #927 has to be resolved:

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

Line 1 in a00046d

// @todo #927 Move site package to one level up

The puzzle was created by Slava Semushin on 13-Jun-19.