feat(connector): add basic XPC connection

connector/shared/src/commonMain/kotlin/XPC.kt

@@ -0,0 +1,27 @@
+import gov.nasa.xpc.XPlaneConnect
+import io.ktor.utils.io.errors.*
+import java.net.SocketException
+
+class XPC {
+
+    private lateinit var xpc: XPlaneConnect
+
+    /**
+     * Connects to the X-Plane and tests the connection
+     *
+     * @return `true` if connection successfully established, `false` otherwise
+     */
+    fun connected(): Boolean {
+        try {
+            xpc = XPlaneConnect()
+
+            // Ensure connection is established
+            xpc.getDREF("sim/test/test_float")
+            return true
+        } catch (ex: SocketException) {
+            return false
+        } catch (ex: IOException) {
+            return false
+        }
+    }
+}