audio: increase soundio binding coverage for running sine-wine example

audio/soundio/Device.zig

@@ -1,5 +1,19 @@
+const std = @import("std");
 const c = @import("c.zig");
+const OutStream = @import("OutStream.zig");
 
-const SoundIoDevice = @This();
+const Device = @This();
 
 handle: *c.SoundIoDevice,
+
+pub fn unref(self: Device) void {
+    c.soundio_device_unref(self.handle);
+}
+
+pub fn name(self: Device) [:0]const u8 {
+    return std.mem.span(self.handle.*.name);
+}
+
+pub fn createOutStream(self: Device) error{OutOfMemory}!OutStream {
+    return OutStream{ .handle = c.soundio_outstream_create(self.handle) orelse return error.OutOfMemory };
+}