feat: add connected endpoint (#87)

Co-authored-by: arc-alex <[email protected]>

src/client.ts

@@ -112,6 +112,9 @@ export class CompanionSatelliteClient extends EventEmitter<CompanionSatelliteCli
 	public get port(): number {
 		return this._port
 	}
+	public get connected(): boolean {
+		return this._connected
+	}
 
 	/**
 	 * Until 2.4 of Companion it does not support rotary encoders.

src/rest.ts

@@ -26,6 +26,9 @@ export class RestServer {
 		this.router.get('/api/port', (ctx) => {
 			ctx.body = this.client.port
 		})
+		this.router.get('/api/connected', (ctx) => {
+			ctx.body = this.client.connected
+		})
 		this.router.get('/api/config', (ctx) => {
 			ctx.body = { host: this.client.host, port: this.client.port }
 		})