fix installation layout for debian packages:

Install symlinks to shared libraries as a part of development package,
not runtime package.

It is default behavior for debian packages.

cmake/OpenCVModule.cmake

@@ -782,9 +782,14 @@ macro(_ocv_create_module)
 
   ocv_install_target(${the_module} EXPORT OpenCVModules OPTIONAL
     RUNTIME DESTINATION ${OPENCV_BIN_INSTALL_PATH} COMPONENT libs
-    LIBRARY DESTINATION ${OPENCV_LIB_INSTALL_PATH} COMPONENT libs
+    LIBRARY DESTINATION ${OPENCV_LIB_INSTALL_PATH} COMPONENT libs NAMELINK_SKIP
     ARCHIVE DESTINATION ${OPENCV_LIB_INSTALL_PATH} COMPONENT dev
     )
+  get_target_property(_target_type ${the_module} TYPE)
+  if("${_target_type}" STREQUAL "SHARED_LIBRARY")
+    install(TARGETS ${the_module}
+      LIBRARY DESTINATION ${OPENCV_LIB_INSTALL_PATH} COMPONENT dev NAMELINK_ONLY)
+  endif()
 
   foreach(m ${OPENCV_MODULE_${the_module}_CHILDREN} ${the_module})
     # only "public" headers need to be installed