Move package structure plugins to plugins dir

Summary:
Package structure plugins are not that special so move them to
the corresponding directory.

Test Plan: Compiles.

Reviewers: #kwin

Subscribers: kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D18685

CMakeLists.txt

@@ -723,7 +723,6 @@ install( FILES ${CMAKE_CURRENT_BINARY_DIR}/kwin_export.h DESTINATION ${INCLUDE_I
 install( FILES scripting/kwinscript.desktop DESTINATION ${SERVICETYPES_INSTALL_DIR} )
 
 add_subdirectory(qml)
-add_subdirectory(packageplugins)
 
 if (BUILD_TESTING)
     add_subdirectory(autotests)

plugins/CMakeLists.txt

@@ -4,6 +4,7 @@ add_subdirectory(idletime)
 add_subdirectory(platforms)
 add_subdirectory(scenes)
 add_subdirectory(windowsystem)
+add_subdirectory(kpackage)
 
 if(KWIN_BUILD_DECORATIONS)
     add_subdirectory(kdecorations)