Make plugin *.conf filenames follow the C++ source filenames.

I don't see why they couldn't be the same.

src/MagnumPlugins/AnyAudioImporter/CMakeLists.txt

@@ -37,7 +37,7 @@ add_plugin(AnyAudioImporter
     audioimporters
     "${MAGNUM_PLUGINS_AUDIOIMPORTER_DEBUG_BINARY_INSTALL_DIR};${MAGNUM_PLUGINS_AUDIOIMPORTER_DEBUG_LIBRARY_INSTALL_DIR}"
     "${MAGNUM_PLUGINS_AUDIOIMPORTER_RELEASE_BINARY_INSTALL_DIR};${MAGNUM_PLUGINS_AUDIOIMPORTER_RELEASE_LIBRARY_INSTALL_DIR}"
-    AnyAudioImporter.conf
+    AnyImporter.conf
     AnyImporter.cpp
     AnyImporter.h)
 if(MAGNUM_ANYAUDIOIMPORTER_BUILD_STATIC AND MAGNUM_BUILD_STATIC_PIC)

src/MagnumPlugins/AnyShaderConverter/CMakeLists.txt

@@ -37,7 +37,7 @@ add_plugin(AnyShaderConverter
     shaderconverters
     "${MAGNUM_PLUGINS_SHADERCONVERTER_DEBUG_BINARY_INSTALL_DIR};${MAGNUM_PLUGINS_SHADERCONVERTER_DEBUG_LIBRARY_INSTALL_DIR}"
     "${MAGNUM_PLUGINS_SHADERCONVERTER_RELEASE_BINARY_INSTALL_DIR};${MAGNUM_PLUGINS_SHADERCONVERTER_RELEASE_LIBRARY_INSTALL_DIR}"
-    AnyShaderConverter.conf
+    AnyConverter.conf
     AnyConverter.cpp
     AnyConverter.h)
 if(MAGNUM_ANYSHADERCONVERTER_BUILD_STATIC AND MAGNUM_BUILD_STATIC_PIC)

src/MagnumPlugins/WavAudioImporter/CMakeLists.txt

@@ -55,7 +55,7 @@ add_plugin(WavAudioImporter
     audioimporters
     "${MAGNUM_PLUGINS_AUDIOIMPORTER_DEBUG_BINARY_INSTALL_DIR};${MAGNUM_PLUGINS_AUDIOIMPORTER_DEBUG_LIBRARY_INSTALL_DIR}"
     "${MAGNUM_PLUGINS_AUDIOIMPORTER_RELEASE_BINARY_INSTALL_DIR};${MAGNUM_PLUGINS_AUDIOIMPORTER_RELEASE_LIBRARY_INSTALL_DIR}"
-    WavAudioImporter.conf
+    WavImporter.conf
     WavImporter.cpp
     WavImporter.h
     $<TARGET_OBJECTS:WavAudioImporterObjects>)