Add CMT Submodule (LMMS#5755)

Switch ladspa CMT plugins to submodule

.gitmodules

@@ -46,3 +46,6 @@
 [submodule "src/3rdparty/jack2"]
 	path = src/3rdparty/jack2
 	url = https://github.com/jackaudio/jack2
+[submodule "plugins/LadspaEffect/cmt/cmt"]
+	path = plugins/LadspaEffect/cmt/cmt
+	url = https://github.com/lmms/cmt

plugins/LadspaEffect/cmt/CMakeLists.txt

@@ -1,19 +1,19 @@
 INCLUDE_DIRECTORIES("${CMAKE_SOURCE_DIR}/include")
-FILE(GLOB_RECURSE SOURCES src/*.cpp)
+FILE(GLOB_RECURSE SOURCES cmt/src/*.cpp)
 LIST(SORT SOURCES)
 ADD_LIBRARY(cmt MODULE ${SOURCES})
 INSTALL(TARGETS cmt LIBRARY DESTINATION "${PLUGIN_DIR}/ladspa")
 
 SET_TARGET_PROPERTIES(cmt PROPERTIES PREFIX "")
 SET_TARGET_PROPERTIES(cmt PROPERTIES COMPILE_FLAGS "-Wall -O3 -fno-strict-aliasing")
 
-IF(LMMS_BUILD_WIN32)
-	ADD_CUSTOM_COMMAND(TARGET cmt POST_BUILD COMMAND "${STRIP}" \"$<TARGET_FILE:cmt>\")
-ELSE(LMMS_BUILD_WIN32)
+IF(LMMS_BUILD_WIN32 AND NOT CMAKE_BUILD_TYPE MATCHES "Deb")
+	ADD_CUSTOM_COMMAND(TARGET cmt POST_BUILD COMMAND "${STRIP}" "$<TARGET_FILE:cmt>")
+ELSE()
 	SET_TARGET_PROPERTIES(cmt PROPERTIES COMPILE_FLAGS "${COMPILE_FLAGS} -fPIC")
-ENDIF(LMMS_BUILD_WIN32)
+ENDIF()
 
 IF(NOT LMMS_BUILD_APPLE AND NOT LMMS_BUILD_OPENBSD)
 	SET_TARGET_PROPERTIES(cmt PROPERTIES LINK_FLAGS "${LINK_FLAGS} -shared -Wl,-no-undefined")
-ENDIF(NOT LMMS_BUILD_APPLE AND NOT LMMS_BUILD_OPENBSD)
+ENDIF()