sceneconverter: move the utility from Trade to MeshTools.

So it can make use of all the APIs in here. Having the utility part of
Trade would make the cyclic dependency a bit weird. Not adding MeshTools
as a dependency just yet, will do that once it's actually needed.

Doxyfile

@@ -917,11 +917,11 @@ WARN_LOGFILE           =
 INPUT                  = src/Magnum \
                          src/MagnumPlugins \
                          src/Magnum/Audio/al-info.cpp \
+                         src/Magnum/MeshTools/sceneconverter.cpp \
                          src/Magnum/Platform/gl-info.cpp \
                          src/Magnum/Text/fontconverter.cpp \
                          src/Magnum/TextureTools/distancefieldconverter.cpp \
                          src/Magnum/Trade/imageconverter.cpp \
-                         src/Magnum/Trade/sceneconverter.cpp \
                          doc/ \
                          ../magnum-plugins/src/Magnum \
                          ../magnum-plugins/src/MagnumPlugins \

src/Magnum/MeshTools/CMakeLists.txt

@@ -119,6 +119,19 @@ install(TARGETS MagnumMeshTools
     ARCHIVE DESTINATION ${MAGNUM_LIBRARY_INSTALL_DIR})
 install(FILES ${MagnumMeshTools_HEADERS} DESTINATION ${MAGNUM_INCLUDE_INSTALL_DIR}/MeshTools)
 
+if(WITH_SCENECONVERTER)
+    add_executable(magnum-sceneconverter sceneconverter.cpp)
+    target_link_libraries(magnum-sceneconverter PRIVATE
+        Magnum
+        MagnumTrade)
+    set_target_properties(magnum-sceneconverter PROPERTIES FOLDER "Magnum/MeshTools")
+
+    install(TARGETS magnum-sceneconverter DESTINATION ${MAGNUM_BINARY_INSTALL_DIR})
+
+    # Magnum sceneconverter target alias for superprojects
+    add_executable(Magnum::sceneconverter ALIAS magnum-sceneconverter)
+endif()
+
 if(BUILD_TESTS)
     # Library with graceful assert for testing
     add_library(MagnumMeshToolsTestLib ${SHARED_OR_STATIC}

src/Magnum/Trade/CMakeLists.txt

@@ -149,19 +149,6 @@ if(WITH_IMAGECONVERTER)
     add_executable(Magnum::imageconverter ALIAS magnum-imageconverter)
 endif()
 
-if(WITH_SCENECONVERTER)
-    add_executable(magnum-sceneconverter sceneconverter.cpp)
-    target_link_libraries(magnum-sceneconverter PRIVATE
-        Magnum
-        MagnumTrade)
-    set_target_properties(magnum-sceneconverter PROPERTIES FOLDER "Magnum/Trade")
-
-    install(TARGETS magnum-sceneconverter DESTINATION ${MAGNUM_BINARY_INSTALL_DIR})
-
-    # Magnum sceneconverter target alias for superprojects
-    add_executable(Magnum::sceneconverter ALIAS magnum-sceneconverter)
-endif()
-
 if(BUILD_TESTS)
     # Library with graceful assert for testing
     add_library(MagnumTradeTestLib ${SHARED_OR_STATIC}