Refactor organisation and implementation of history endpoints

src/main/java/org/openepics/names/rest/api/v1/IHistory.java

src/main/java/org/openepics/names/rest/api/v1/INames.java

...ain/java/org/openepics/names/rest/api/v1/IStructures.java

...rg/openepics/names/rest/controller/HistoryController.java

.../org/openepics/names/rest/controller/NamesController.java

...openepics/names/rest/controller/StructuresController.java

src/test/java/org/openepics/names/docker/ITUtil.java

src/test/java/org/openepics/names/docker/ITUtilHistory.java

src/test/java/org/openepics/names/docker/ITUtilNames.java

...est/java/org/openepics/names/docker/ITUtilStructures.java

src/test/java/org/openepics/names/docker/NamesIT.java

...a/org/openepics/names/docker/StructuresDeviceGroupIT.java

...va/org/openepics/names/docker/StructuresDeviceTypeIT.java

...va/org/openepics/names/docker/StructuresDisciplineIT.java

...ava/org/openepics/names/docker/StructuresSubsystemIT.java

...a/org/openepics/names/docker/StructuresSystemGroupIT.java

...t/java/org/openepics/names/docker/StructuresSystemIT.java

.../openepics/names/docker/complex/NamesInstanceIndexIT.java

...a/org/openepics/names/docker/complex/NamesMultipleIT.java

...openepics/names/docker/complex/StructuresCUDDeleteIT.java