stripeq, buseq

- replace iremote with eq for stripeq and buseq
- move identifier to eq
- avoid passing entire parent objects

lib/bus.ps1

@@ -83,13 +83,8 @@ class BusMode : IRemote {
     }
 }
 
-class BusEq : IRemote {
-    BusEq ([int]$index, [Object]$remote) : base ($index, $remote) {
-        AddBoolMembers -PARAMS @('on', 'ab')
-    }
-
-    [string] identifier () {
-        return 'Bus[' + $this.index + '].EQ'
+class BusEq : Eq {
+    BusEq ([int]$index, [Object]$remote) : base ($index, $remote, 'Bus', $remote.kind.bus_ch) {
     }
 }