[MOD/WIP] Start separating the main DB API

Not everything is available as of now, I'm still working on it, but it
builds and seems to work, and its 9PM, so that's worthapush.

src/Db/LMDB.c

@@ -0,0 +1,39 @@
+#include <Memory.h>
+
+#include <Db.h>
+
+#include "Db/Internal.h"
+
+#ifdef EDB_LMDB
+
+typedef struct LMDB {
+    Db base; /* The base implementation required to pass */
+} LMDB;
+Db *
+DbOpenLMDB(char *dir, size_t size)
+{
+    /* TODO */
+    LMDB *db;
+    if (!dir || !size)
+    {
+        return NULL;
+    }
+
+    db = Malloc(sizeof(*db));
+    DbInit(db);
+
+    (void) size;
+    (void) dir;
+    return db;
+}
+
+#else
+Db *
+DbOpenLMDB(char *dir, size_t size)
+{
+    /* Unimplemented function */
+    (void) size;
+    (void) dir;
+    return NULL;
+}
+#endif