Added setup guide and launch tools

tools/launch/pi.example.ini

@@ -0,0 +1,17 @@
+[launcher]
+logs = logs
+
+[cabinet]
+; Relative to this INI, or use an absolute executable path.
+executable = ../../ArcadeEscape.arm64
+id = cabinet_01
+; Leave these blank to use the game's existing user://arcade_network.cfg.
+url =
+token =
+gpio = true
+
+[gpio]
+controller = cabinet_01_gpio
+pins = 17
+; Preserve this ledger across launches to prevent repeated rewards.
+ledger = ~/.local/state/arcade_gpio/requests.sqlite3