add riverctl patch

patches/riverctl/readme

@@ -0,0 +1,33 @@
+This patch adds river-control-unstable-v1 support to dwl, allowing changing dwl settings on the fly via dwlctl.
+dwlctl is a small wayland program included with this patch that connects to dwl and is able to change some dwl settings at runtime,
+such as rules and keybinds.
+
+build for dwl-git commit 15bfffd8
+
+currently only the following is supported:
+clearing binds,
+clearing rules,
+adding rules,
+adding binds,
+running random functions,
+
+example commands for using dwlctl with dwl:
+
+dwlctl clear-binds
+
+dwlctl bind super,shift Return spawn kitty tmux
+
+dwlctl bind supershift q killclient
+
+dwlctl clear-rules
+
+dwlctl rule-add -appid steam -title steam float tags $((1 << 2))
+
+dwlctl rule-add -appid kitty float
+
+dwlctl rule-add -title firefox float
+
+dwlctl func spawn kitty tmux
+
+dwlctl func setlayout 2
+