Filesystem handling is now more flexible

- removed CResourceLoader class in favor of one that implements resource loader interface
- removed global pool of files, in favour of more dynamic approach
- renamed some files to match current situation
All these changes are needed mostly for future mod manager + .zip support

lib/mapping/CCampaignHandler.cpp

@@ -1,7 +1,7 @@
 #include "StdInc.h"
 #include "CCampaignHandler.h"
 
-#include "../filesystem/CResourceLoader.h"
+#include "../filesystem/Filesystem.h"
 #include "../filesystem/CCompressedStream.h"
 #include "../VCMI_Lib.h"
 #include "../vcmi_endian.h"

lib/mapping/CMapEditManager.cpp

@@ -2,7 +2,7 @@
 #include "CMapEditManager.h"
 
 #include "../JsonNode.h"
-#include "../filesystem/CResourceLoader.h"
+#include "../filesystem/Filesystem.h"
 #include "../CDefObjInfoHandler.h"
 
 MapRect::MapRect() : x(0), y(0), z(0), width(0), height(0)

lib/mapping/CMapService.cpp

@@ -1,7 +1,7 @@
 #include "StdInc.h"
 #include "CMapService.h"
 
-#include "../filesystem/CResourceLoader.h"
+#include "../filesystem/Filesystem.h"
 #include "../filesystem/CBinaryReader.h"
 #include "../filesystem/CCompressedStream.h"
 #include "../filesystem/CMemoryStream.h"

lib/mapping/MapFormatH3M.cpp

@@ -15,8 +15,7 @@
 
 #include "../CStopWatch.h"
 
-#include "../filesystem/CResourceLoader.h"
-#include "../filesystem/CInputStream.h"
+#include "../filesystem/Filesystem.h"
 #include "CMap.h"
 
 #include "../CSpellHandler.h"