Merge branch 'core_tests' into 'develop'

README.md

core/src/main/java/cz/muni/pa165/rest/CarController.java

...src/main/java/cz/muni/pa165/rest/ComponentController.java

core/src/main/java/cz/muni/pa165/rest/DriverController.java

core/src/test/java/cz/muni/pa165/rest/CarControllerTest.java

core/src/test/java/cz/muni/pa165/rest/IntegrationTests.java

diagrams/class_diagram.png

diagrams/classdia

diagrams/use_case_diagram.png