Add missing examples to installation

The CDC examples are now installed if the CDC protocol module is built.

CMakeLists.txt

@@ -306,4 +306,3 @@ if (NOT CMAKE_INSTALL_PREFIX EQUAL "/usr")
   install(DIRECTORY DESTINATION var/log/maxscale)
   install(DIRECTORY DESTINATION var/run/maxscale)
 endif()
-

server/modules/protocol/CMakeLists.txt

@@ -1,5 +1,6 @@
 if(BUILD_CDC)
   add_subdirectory(CDC)
+  add_subdirectory(examples)
 endif()
 
 add_subdirectory(HTTPD)
@@ -8,7 +9,6 @@ add_subdirectory(MySQLBackend)
 add_subdirectory(MySQLClient)
 add_subdirectory(telnetd)
 
-
 if(BUILD_TESTS)
   add_subdirectory(testprotocol)
 endif()