add hot-reload patch

patches/hot-reload/README.md

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+### Description
+Enables hot-reloading of dwl; meaning almost all logic can be changed at runtime.
+This obviously requires some black magic so for now there's a glibc 2.0 or later
+dependency to this.
+In particular this allows for every option in config.h to be changed at runtime.
+
+#### Reloading
+To reload rebuild dwl.so, perhaps reinstall it and then run trigger reload function (bound to Mod+Shift+R by default).
+This currently calls `notify-send` in order to inform you of a reloading taking place.
+So in short:
+1. make changes to `config.h` or `dwl.c`
+2. run `make` to rebuild dwl.so
+3. run `sudo make install` to reinstall dwl
+
+
+#### Limitations
+Reloading the compositor will replace all functionality except for `main`, `setup`, `run` and the reload logic.
+Note that you're responsible yourself for reloading ressources like fonts, which may only get acquired once.
+A lot of components of dwl will also only get run on a trigger (the tiling for example).
+So not every change will be immediate.
+
+#### Note
+This patches triggers `-Wpedantic` a bunch (there's no way around this, `dlsym` yields `void*` pointers to functions).
+This will show a lot of warnings but cause no errors.
+So you may want to disable this compile option in order to get readable compiler output.
+
+#### How?
+Most of all dwl functionality is moved into a shared object file `dwl.so`, which can be reloaded at runtime.
+
+### Download
+- [0.7](/dwl/dwl-patches/raw/branch/main/patches/hot-reload/hot-reload-0.7.patch)
+- [main 2025-02-14](/dwl/dwl-patches/raw/branch/main/patches/hot-reload/hot-reload.patch)
+- find the repo for the patch [here](/Sivecano/dwl/src/branch/hot-reload)
+### Authors
+- [Sivecano](https://codeberg.org/Sivecano)
+- Sérécano at [dwl Discord](https://discord.gg/jJxZnrGPWN)