fixing c standard lib includes

src/blah_common.cpp

@@ -1,5 +1,6 @@
 #include <blah_common.h>
 #include <blah_app.h>
+#include <stdio.h> // for vsnprintf
 
 using namespace Blah;
 

src/blah_graphics.cpp

@@ -1,6 +1,7 @@
 #include <blah_graphics.h>
 #include <blah_stream.h>
 #include "internal/blah_internal.h"
+#include <string.h> // for strcmp
 
 using namespace Blah;
 

src/blah_stream.cpp

@@ -1,5 +1,6 @@
 #include <blah_stream.h>
 #include <blah_string.h>
+#include <string.h> // for memcpy
 
 using namespace Blah;
 

src/internal/blah_renderer_d3d11.cpp

@@ -1650,7 +1650,7 @@ Blah::Renderer* Blah::Renderer::try_make_d3d11()
 
 #else // BLAH_RENDERER_D3D11
 
-#include "renderer.h"
+#include "blah_renderer.h"
 Blah::Renderer* Blah::Renderer::try_make_d3d11()
 {
 	return nullptr;