Add wayland support ot pbc and pbp

tree/.local/bin/pbc

@@ -1,3 +1,7 @@
 #!/usr/bin/env sh
-xsel --clipboard --input
+if [ "$XDG_SESSION_TYPE" == "wayland" ]; then
+	wl-copy
+else
+	xsel --clipboard --input
+fi
 

tree/.local/bin/pbp

@@ -1,2 +1,6 @@
 #!/usr/bin/env sh
-xsel --clipboard --output
+if [ "$XDG_SESSION_TYPE" == "wayland" ]; then
+	wl-paste -n
+else
+	xsel --clipboard --output
+fi