apply ocornut suggested cimgui structure

generator/cimgui_template.cpp

@@ -0,0 +1,34 @@
+
+#include "../imgui/imgui.h"
+#include "cimgui.h"
+
+#include "../imgui/imgui_internal.h"
+
+#include "auto_funcs.cpp"
+
+/////////////////////////////manual written functions
+CIMGUI_API void igLogText(CONST char *fmt, ...)
+{
+    char buffer[256];
+    va_list args;
+    va_start(args, fmt);
+    vsnprintf(buffer, 256, fmt, args);
+    va_end(args);
+
+    ImGui::LogText("%s", buffer);
+}
+CIMGUI_API void ImGuiTextBuffer_appendf(struct ImGuiTextBuffer *buffer, const char *fmt, ...)
+{
+    va_list args;
+    va_start(args, fmt);
+    buffer->appendfv(fmt, args);
+    va_end(args);
+}
+CIMGUI_API void ImFontConfig_DefaultConstructor(ImFontConfig *config)
+{
+    *config = ImFontConfig();
+}
+CIMGUI_API float igGET_FLT_MAX()
+{
+    return FLT_MAX;
+}