Запрос на слияние 'add-base-classes' (#2) из add-base-classes в master

add business logic for password manager, implement service and repository

add controller and models

add business logic for password manager, implement service and repository

add controller and models

test commit

Запрос на слияние 'add-description' (#1) из add-description в master

add pom.xml, add description and UML-diagram to README.md

add pom.xml, add description and UML-diagram to README.md

add empty README.md