chore: flatten source dirs

Author: vinniefalco

include/mrdox/Dom/DomContext.hpp renamed to include/mrdox/Metadata/DomContext.hpp

@@ -10,8 +10,8 @@
 
 #include "Builder.hpp"
 #include "Support/Radix.hpp"
-#include <mrdox/Dom/DomContext.hpp>
-#include <mrdox/Dom/DomMetadata.hpp>
+#include <mrdox/Metadata/DomContext.hpp>
+#include <mrdox/Metadata/DomMetadata.hpp>
 #include <mrdox/Support/Path.hpp>
 #include <llvm/Support/FileSystem.h>
 #include <llvm/Support/Path.h>

include/mrdox/Dom/DomMetadata.hpp renamed to include/mrdox/Metadata/DomMetadata.hpp

@@ -8,7 +8,7 @@
 // Official repository: https://github.com/cppalliance/mrdox
 //
 
-#include <mrdox/Dom/DomContext.hpp>
+#include <mrdox/Metadata/DomContext.hpp>
 #include <utility>
 
 namespace clang {

source/-adoc/Builder.cpp

@@ -10,7 +10,7 @@
 
 #include "Support/Radix.hpp"
 #include <mrdox/Metadata.hpp>
-#include <mrdox/Dom/DomMetadata.hpp>
+#include <mrdox/Metadata/DomMetadata.hpp>
 
 #include "-adoc/DocVisitor.hpp" // VFALCO NO!