refactor: renamed automation dir to ztp

...p/src/main/java/eu/teraflow/ztp/device/DeviceGateway.java

...c/main/java/eu/teraflow/ztp/device/DeviceGatewayImpl.java

...p/src/main/java/eu/teraflow/ztp/device/DeviceService.java

...c/main/java/eu/teraflow/ztp/device/DeviceServiceImpl.java

...eu/teraflow/ztp/kpi_sample_types/model/KpiSampleType.java

src/ztp/src/main/java/eu/teraflow/ztp/model/DeviceRole.java

...src/main/java/eu/teraflow/ztp/model/DeviceRoleConfig.java

...ztp/src/main/java/eu/teraflow/ztp/model/DeviceRoleId.java

...p/src/main/java/eu/teraflow/ztp/model/DeviceRoleType.java

src/ztp/src/main/java/eu/teraflow/ztp/model/DeviceState.java

src/ztp/src/main/proto/acl.proto

src/ztp/src/main/proto/context.proto

src/ztp/src/main/proto/device.proto

src/ztp/src/main/proto/kpi_sample_types.proto

src/ztp/src/main/proto/monitoring.proto

src/ztp/src/main/proto/ztp.proto

src/ztp/src/main/resources/application.yml

src/ztp/src/main/resources/teraflow-ztp-banner.txt

...ztp/src/test/java/eu/teraflow/ztp/ConfigRuleTypeTest.java

.../src/test/java/eu/teraflow/ztp/ContextSubscriberTest.java