Rename 'Standard Gaming Platform' to 'sgp' (#246)

* rename 'Standard Gaming Platform' to 'sgp'

* Adapt CMakeLists.txt files to renamed SGP directory

* Lowercase it

sgp/Ja2 Libs.cpp

@@ -0,0 +1,60 @@
+#include "LibraryDataBase.h"
+LibraryInitHeader gGameLibaries[ ] = 
+{ 
+		//Library Name					Can be	Init at start
+//													on cd
+	{ "Data.slf",							FALSE, TRUE },
+	{ "Editor.slf",                     FALSE, FALSE },
+	{ "Ambient.slf",					FALSE, TRUE },
+	{ "Anims.slf",						FALSE, TRUE },
+	{ "BattleSnds.slf",				FALSE, TRUE },
+	{ "BigItems.slf",					FALSE, TRUE },
+	{ "BinaryData.slf",				FALSE, TRUE },
+	{ "Cursors.slf",					FALSE, TRUE },
+	{ "Faces.slf",						FALSE, TRUE },
+	{ "Fonts.slf",						FALSE, TRUE },
+	{ "Interface.slf",				FALSE, TRUE },
+	{ "Laptop.slf",						FALSE, TRUE },
+	{ "Maps.slf",							TRUE,	TRUE },
+	{ "MercEdt.slf",					FALSE, TRUE },
+	{ "Music.slf",						TRUE,	TRUE },
+	{ "Npc_Speech.slf",				TRUE,	TRUE },
+	{ "NpcData.slf",					FALSE, TRUE },
+	{ "RadarMaps.slf",				FALSE, TRUE },
+	{ "Sounds.slf",						FALSE, TRUE },
+	{ "Speech.slf",						TRUE,	TRUE },
+//	{ "TileCache.slf",				FALSE, TRUE },
+	{ "TileSets.slf",					TRUE,	TRUE },
+	{ "LoadScreens.slf",			TRUE,	TRUE },
+	{ "Intro.slf",						TRUE,	TRUE },
+
+#ifdef GERMAN
+	{ "German.slf",						FALSE, TRUE },
+#endif
+
+#ifdef POLISH
+	{ "Polish.slf",						FALSE, TRUE },
+#endif
+
+#ifdef DUTCH
+	{ "Dutch.slf",						FALSE, TRUE },
+#endif
+
+#ifdef ITALIAN
+	{ "Italian.slf",					FALSE, TRUE },
+#endif
+
+#ifdef RUSSIAN
+	{ "Russian.slf",					FALSE, TRUE },
+#endif
+
+#ifdef FRENCH
+	{ "French.slf",						FALSE, TRUE },
+#endif
+
+#ifdef CHINESE
+	{ "Chinese.slf",					FALSE, TRUE },
+#endif
+};
+
+