refactor(History): Move history upgrades to new directory

Upcoming upgrade is fairly large, and all the helper functions for each
upgrade are becoming ambiguous.

CMakeLists.txt

@@ -315,10 +315,10 @@ set(${PROJECT_NAME}_SOURCES
   src/nexus.h
   src/persistence/db/rawdatabase.cpp
   src/persistence/db/rawdatabase.h
+  src/persistence/db/upgrades/dbupgrader.cpp
+  src/persistence/db/upgrades/dbupgrader.h
   src/persistence/history.cpp
   src/persistence/history.h
-  src/persistence/dbupgrader.cpp
-  src/persistence/dbupgrader.h
   src/persistence/ifriendsettings.cpp
   src/persistence/ifriendsettings.h
   src/persistence/igroupsettings.cpp

src/persistence/history.cpp

@@ -23,7 +23,7 @@
 #include "history.h"
 #include "profile.h"
 #include "settings.h"
-#include "dbupgrader.h"
+#include "db/upgrades/dbupgrader.h"
 #include "db/rawdatabase.h"
 #include "src/core/toxpk.h"
 

test/persistence/dbschema_test.cpp

@@ -18,7 +18,7 @@
 */
 
 #include "src/persistence/db/rawdatabase.h"
-#include "src/persistence/dbupgrader.h"
+#include "src/persistence/db/upgrades/dbupgrader.h"
 #include "src/core/toxfile.h"
 
 #include "dbutility/dbutility.h"