sim-applet: add "flash" and "remove" targets

Using wrong arguments for shadysim.py (e.g. wrong --max-menu-entry-text)
results in cryptic errors, so let's version them along with the source.
diff --git a/sim-applet/.sim-keys.example b/sim-applet/.sim-keys.example
new file mode 100644
index 0000000..2b42ea3
--- /dev/null
+++ b/sim-applet/.sim-keys.example
@@ -0,0 +1,2 @@
+KIC1="FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
+KID1="FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"