feat(elecraft): the rest of the main controls on the K3/K4 console

So the tester can exercise everything in one session instead of one
control per build: RF and mic gain, squelch, preamp, attenuator, NB, NR,
AGC, filter width, antenna, RIT/XIT with a clear, and the keyer speed.

The analogue scales differ between an Elecraft and a Kenwood — RF gain
000-250, mic 000-060, squelch 000-029 against 0-255 — so each is mapped
through its own full scale and shown as a percentage. Using one rig's
range on the other silently halves or doubles every setting.

Antenna only appears when the radio answers AN: a K3 without the internal
ATU has one socket, and a switch that goes nowhere is worse than none.

frontend/wailsjs/go/models.ts

@@ -1082,6 +1082,19 @@ export namespace cat {
 	    swr_raw: number;
 	    rf_power: number;
 	    af_gain: number;
+	    rf_gain: number;
+	    mic_gain: number;
+	    squelch: number;
+	    preamp: boolean;
+	    att: boolean;
+	    nb: boolean;
+	    nr: boolean;
+	    agc?: string;
+	    filter_hz: number;
+	    antenna: number;
+	    rit: boolean;
+	    xit: boolean;
+	    key_speed: number;
 	    meters_provisional: boolean;
 	
 	    static createFrom(source: any = {}) {
@@ -1104,6 +1117,19 @@ export namespace cat {
 	        this.swr_raw = source["swr_raw"];
 	        this.rf_power = source["rf_power"];
 	        this.af_gain = source["af_gain"];
+	        this.rf_gain = source["rf_gain"];
+	        this.mic_gain = source["mic_gain"];
+	        this.squelch = source["squelch"];
+	        this.preamp = source["preamp"];
+	        this.att = source["att"];
+	        this.nb = source["nb"];
+	        this.nr = source["nr"];
+	        this.agc = source["agc"];
+	        this.filter_hz = source["filter_hz"];
+	        this.antenna = source["antenna"];
+	        this.rit = source["rit"];
+	        this.xit = source["xit"];
+	        this.key_speed = source["key_speed"];
 	        this.meters_provisional = source["meters_provisional"];
 	    }
 	}