change build system to CMake and use SDL3 for everything

libs/SDL3/src/hidapi/doxygen/main_page.md

@@ -0,0 +1,13 @@
+# HIDAPI Doxygen output
+
+This site is dedicated to hosting an [API reference for the HIDAPI library](#API).
+
+For general information, see the [source repository](https://github.com/libusb/hidapi#readme).
+
+There are also build instructions hosted on github:
+
+- [Building from source](https://github.com/libusb/hidapi/blob/master/BUILD.md)
+- [Using CMake](https://github.com/libusb/hidapi/blob/master/BUILD.cmake.md)
+- [Using Autotools (deprecated)](https://github.com/libusb/hidapi/blob/master/BUILD.autotools.md)
+
+\example test.c contains a basic example usage of the HIDAPI library.