message: apps: Server cmake fixes
diff: cmake_minimum_required(VERSION 2.8)
  project(aditof-server)
  -find_package(PkgConfig)
  -pkg_check_modules(LIB_WEBSOCKETS REQUIRED libwebsockets)
  -
  -find_package(Protobuf REQUIRED)
  +find_package(Protobuf 3.9.0 REQUIRED)
  +find_package(Libwebsockets REQUIRED)
  protobuf_generate_cpp(PROTO_SRCS PROTO_HRDS buffer.proto)
  @@ -12,11 +10,8 @@ get_filename_component(GENERATED_PROTO_FILES_DIR ${PROTO_HRDS} DIRECTORY)
  add_executable(${PROJECT_NAME} server.cpp ${PROTO_SRCS} ${PROTO_HDRS})
  -target_link_libraries(${PROJECT_NAME} PRIVATE aditof protobuf ${LIB_WEBSOCKETS_LIBRARIES})
  +target_link_libraries(${PROJECT_NAME} PRIVATE aditof ${Protobuf_LIBRARIES} ${LIBWEBSOCKETS_LIBRARIES})
  -target_include_directories(${PROJECT_NAME} PRIVATE ${GENERATED_PROTO_FILES_DIR} ${LIB_WEBSOCKETS_INCLUDE_DIRS})
  +target_include_directories(${PROJECT_NAME} PRIVATE ${Protobuf_INCLUDE_DIRS} ${GENERATED_PROTO_FILES_DIR} ${LIBWEBSOCKETS_INCLUDE_DIRS})
  -set_target_properties(${PROJECT_NAME} PROPERTIES
  - CXX_STANDARD 11
  - LINK_FLAGS "-L${LIB_WEBSOCKETS_LIBRARY_DIRS}"
  -)
  +set_target_properties(${PROJECT_NAME} PROPERTIES CXX_STANDARD 11)
  