config: add x11proto dependency for libxau and SDDM

- Add x11proto to redbear-full.toml package list
- libxau recipe updated with x11proto dependency and custom build script
- Fixes libxau build failure: 'Package xproto was not found'

src/cook/script.rs

@@ -102,6 +102,13 @@ export PATH="${COOKBOOK_TOOLCHAIN}/bin:${PATH}"
 export LD_LIBRARY_PATH="${COOKBOOK_TOOLCHAIN}/lib:${LD_LIBRARY_PATH}"
 fi
 
+# Add redoxer toolchain to path if exists
+REDOXER_TOOLCHAIN="${HOME}/.redoxer/${TARGET}/toolchain"
+if [ -d "${REDOXER_TOOLCHAIN}/bin" ]
+then
+export PATH="${REDOXER_TOOLCHAIN}/bin:${PATH}"
+fi
+
 # This puts cargo build artifacts in the build directory
 export CARGO_TARGET_DIR="${COOKBOOK_BUILD}/target"