I would like to include [open62541](https://github.com/open62541/open62541) library to my existing C++ project in Visual Studio using CMake. open62541 itself uses CMake as build tool. Project structure:

```
MyOPC
│   CMakeLists.txt
│   MyOPC.cpp
│   MyOPC.h
├───.vs
└───open62541
    │   CMakeLists.txt
    ├───arch
    │   │    CMakeLists.txt
    ├───deps
    ├───doc
    ├───examples
    ├───include
    ├───plugins
    ├───src
    ├───tests
    └───tools

```

I would like to build open62541 togehter with my project so it will produce open62541.h file. How this could be done using CMake?