Add note to readme about stdlib files

Revert changes in imstb_truetype.h to version of imgui v1.83
(decrease version of stb_truetype library but use imgui changes)

src/imgui/CMakeLists.txt

@@ -3,16 +3,17 @@ project(imgui)
 
 add_library(imgui STATIC
     imconfig.h
+    imgui.cpp
     imgui.h
+    imgui_demo.cpp
+    imgui_draw.cpp
     imgui_internal.h
+    imgui_stdlib.cpp
     imgui_stdlib.h
+    imgui_tables.cpp
+    imgui_widgets.cpp
+    # imgui STB
     imstb_rectpack.h
     imstb_textedit.h
     imstb_truetype.h
-    imgui_tables.cpp
-    imgui.cpp
-    imgui_demo.cpp
-    imgui_draw.cpp
-    imgui_widgets.cpp
-    imgui_stdlib.cpp
 )

src/imgui/README.md

@@ -4,6 +4,11 @@ For more information go to https://github.com/ocornut/imgui
 
 THIS DIRECTORY CONTAINS THE imgui-1.83 ad5d1a8 SOURCE DISTRIBUTION.
 
+
 Customized with the following commits:
 f93d0001baa5443da2c6510d11b03c675e652418
 b71d787f695c779e571865d5214d4da8d50aa7c5
+
+imgui_stdlib.h + imgui_stdlib.cpp are move from directory /imgui/misc/cpp/
+InputText() wrappers for C++ standard library (STL) type: std::string.
+This is also an example of how you may wrap your own similar types.

src/imgui/_CMakeLists.txt

@@ -1,18 +0,0 @@
-cmake_minimum_required(VERSION 2.8.12)
-project(imgui)
-
-add_library(imgui STATIC
-    imconfig.h
-    imgui.cpp
-    imgui.h
-    #imgui_demo.cpp
-    imgui_draw.cpp
-    imgui_internal.h
-    imgui_stdlib.cpp
-    imgui_stdlib.h
-    imgui_tables.cpp
-    imgui_widgets.cpp
-    imstb_rectpack.h
-    imstb_textedit.h
-    imstb_truetype.h
-)