Moved the Register and Unregister methods of the coders to a header file to make it easier to only register some of the coders.
diff --git a/coders/debug.h b/coders/debug.h
new file mode 100644
index 0000000..4cce0c1
--- /dev/null
+++ b/coders/debug.h
@@ -0,0 +1,27 @@
+/*
+ Copyright 1999-2018 ImageMagick Studio LLC, a non-profit organization
+ dedicated to making software imaging solutions freely available.
+
+ You may not use this file except in compliance with the License.
+ obtain a copy of the License at
+
+ https://imagemagick.org/script/license.php
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+#include "coders/coders-private.h"
+
+#if defined(__cplusplus) || defined(c_plusplus)
+extern "C" {
+#endif
+
+MagickCoderExports(DEBUG)
+
+#if defined(__cplusplus) || defined(c_plusplus)
+}
+#endif
\ No newline at end of file
