- Changed compilation for g_doom, g_heretic, g_hexen and g_strife folders

so that all files are included by a central one instead of compiling 
  each one separately. This speeds up the compilation process by 25%
  when doing a complete rebuild in Visual C.
- Cleaned up more header dependencies.

SVN r1226 (trunk)

src/v_font.cpp

@@ -94,12 +94,14 @@ The FON2 header is followed by variable length data:
 #include "r_draw.h"
 #include "r_translate.h"
 #include "colormatcher.h"
+#include "v_palette.h"
 
 // MACROS ------------------------------------------------------------------
 
 #define DEFAULT_LOG_COLOR	PalEntry(223,223,223)
 
 // TYPES -------------------------------------------------------------------
+void RecordTextureColors (FTexture *pic, BYTE *colorsused);
 
 // This structure is used by BuildTranslations() to hold color information.
 struct TranslationParm
@@ -116,6 +118,34 @@ struct TranslationMap
 	int Number;
 };
 
+class FSingleLumpFont : public FFont
+{
+public:
+	FSingleLumpFont (const char *fontname, int lump);
+
+protected:
+	void CheckFON1Chars (int lump, const BYTE *data, double *luminosity);
+	void BuildTranslations2 ();
+	void FixupPalette (BYTE *identity, double *luminosity, const BYTE *palette,
+		bool rescale, PalEntry *out_palette);
+	void LoadFON1 (int lump, const BYTE *data);
+	void LoadFON2 (int lump, const BYTE *data);
+	void CreateFontFromPic (FTextureID picnum);
+};
+
+class FSinglePicFont : public FFont
+{
+public:
+	FSinglePicFont(const char *picname);
+
+	// FFont interface
+	FTexture *GetChar (int code, int *const width) const;
+	int GetCharWidth (int code) const;
+
+protected:
+	FTextureID PicNum;
+};
+
 // This is a font character that loads a texture and recolors it.
 class FFontChar1 : public FTexture
 {