start converting stb_image.c to a .h file

tests/image_test.c

@@ -1,8 +1,8 @@
 #define STB_IMAGE_WRITE_IMPLEMENTATION
 #include "stb_image_write.h"
 
-#define STBI_HEADER_FILE_ONLY
+#define STB_IMAGE_IMPLEMENTATION
-#include "stb_image.c"
+#include "stb_image.h"
 
 
 int main(int argc, char **argv)

tests/image_test/image_test.dsp

@@ -86,10 +86,6 @@ SOURCE=..\image_test.c
 # End Source File
 # Begin Source File
 
-SOURCE=..\..\stb_image.c
-# End Source File
-# Begin Source File
-
 SOURCE=..\..\stb_image_write.h
 # End Source File
 # End Target

tests/test_cpp_compilation.cpp

@@ -4,6 +4,7 @@
 #define STB_DXT_IMPLEMENATION
 #define STB_C_LEXER_IMPLEMENTATIOn
 #define STB_DIVIDE_IMPLEMENTATION
+#define STB_IMAGE_IMPLEMENTATION
 
 #include "stb_truetype.h"
 #include "stb_image_write.h"
@@ -11,3 +12,6 @@
 #include "stb_dxt.h"
 #include "stb_c_lexer.h"
 #include "stb_divide.h"
+#include "stb_image.h"
+
+