turn beta.c and dogs.c into header files

README.md

@@ -215,11 +215,11 @@ Copyright: © 1993-1996 Id Software, Inc.;
  © 2020 Alex Mayfield.  
 License: [GPL-2.0+](https://www.gnu.org/licenses/old-licenses/gpl-2.0.html)
 
-Files: `Source/beta.c`  
+Files: `Source/beta.h`  
 Copyright: © 2001-2019 Contributors to the Freedoom project.  
 License: [BSD-3-Clause](https://opensource.org/licenses/BSD-3-Clause)
 
-Files: `Source/dogs.c`  
+Files: `Source/dogs.h`  
 Copyright: © 2017 Nash Muhandes;  
  © apolloaiello;  
  © TobiasKosmos.  

Source/CMakeLists.txt

@@ -2,6 +2,7 @@ include(WoofSettings)
 
 set(WOOF_SOURCES
     am_map.c   am_map.h
+    beta.h
     d_deh.c    d_deh.h
     d_englsh.h
     d_event.h
@@ -15,6 +16,7 @@ set(WOOF_SOURCES
     d_textur.h
     d_think.h
     d_ticcmd.h
+    dogs.h
     doomdata.h
     doomdef.c  doomdef.h
     doomstat.c doomstat.h

Source/info.c

@@ -7757,10 +7757,10 @@ static const char cr_yellow[]=
      240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255};
 
 // [FG] replace embedded non-free dogs sprites and sounds
-#include "dogs.c"
+#include "dogs.h"
 
 // [FG] replace embedded non-free plasma ball sprites
-#include "beta.c"
+#include "beta.h"
 
 // killough 1/31/98: 
 // Table of predefined lumps, used to make up for any wad deficiencies.