optinally install demos and libs as well (#5387)

Co-authored-by: Gabor Kiss-Vamosi <kisvegabor@gmail.com>

docs/integration/building/cmake.rst

@@ -0,0 +1,71 @@
+.. _build_cmake:
+
+=====
+cmake
+=====
+
+Overview
+********
+This project uses CMakePresets to ensure an easy build.  Find out more on Cmake Presets here:
+https://cmake.org/cmake/help/latest/manual/cmake-presets.7.html
+
+Prerequsites
+------------
+You need to install
+
+- CMake
+- Ninja (for Linux builds). Be sure to Add ninja to your PATH!
+
+How to build this project using cmake
+-------------------------------------
+
+The recommended way to build this project is to use the provided CMakePresets.json. This file contains 2 configurations
+
+- a windows (msvc) build using Visual Studio
+- a linux (gcc) build using Ninja
+
+More configurations will be added once available.
+
+Build with IDE
+--------------
+
+The recommend way for consuming CMakePresets is a CMakePresets aware IDE such as
+
+- VS 2022
+- VS Code
+- CLion
+
+Simply load this project into your IDE and select your desired preset and you are good to go.
+
+
+Build with CMake GUI
+--------------------
+Open this project with CMake GUI and select your desired preset.
+When hitting the generate button, CMake will create solution files (for VS) or Ninja Files (for Linux Ninja Build)
+
+The following targets are available.
+
+- lvgl (the actual library, required)
+- lvgl_thorvg (an vector grafics extension, optional)
+- lvgl_examples (example usages, optional)
+- lvgl_demos (some demos, optional)
+
+All optional targets can be disabled by setting the proper cache variables.
+If you use cmake to install lvgl 3 folders will be created.
+
+- include/lvgl (contains all public headers)
+- bin (contains all binaries (\*.dll))
+- lib (contains all precompiled source files (\*.lib))
+
+
+Build with Command line
+-----------------------
+
+You can also build your project using the command line.
+Run the follwoing commands
+
+- cmake --preset windows-base
+- cmake --build --preset windows-base_dbg
+- ctest --preset windows-base_dbg
+
+

docs/integration/building/index.rst

@@ -0,0 +1,10 @@
+=============
+Build systems
+=============
+
+
+.. toctree::
+   :maxdepth: 2
+
+   make
+   cmake

docs/integration/building/make.rst

@@ -0,0 +1,7 @@
+.. _build_make:
+
+====
+make
+====
+
+LVGL can be easily integrated into any Makefile project by adding ``include lvgl/lvgl.mk`` to the main ``Makefile``.

docs/integration/index.rst

@@ -5,7 +5,7 @@ Integration and Drivers
 .. toctree::
     :maxdepth: 2
 
-    build/index
+    building/index
     chip/index
     driver/index
     framework/index