Split audio types into separate files

Raylib-cs/types/AudioStream.cs

@@ -0,0 +1,38 @@
+using System;
+using System.Runtime.InteropServices;
+
+namespace Raylib_cs;
+
+/// <summary>
+/// Audio stream type<br/>
+/// NOTE: Useful to create custom audio streams not bound to a specific file
+/// </summary>
+[StructLayout(LayoutKind.Sequential)]
+public partial struct AudioStream
+{
+    //TODO: convert
+    /// <summary>
+    /// Pointer to internal data(rAudioBuffer *) used by the audio system
+    /// </summary>
+    public IntPtr Buffer;
+
+    /// <summary>
+    /// Pointer to internal data processor, useful for audio effects
+    /// </summary>
+    public IntPtr Processor;
+
+    /// <summary>
+    /// Frequency (samples per second)
+    /// </summary>
+    public uint SampleRate;
+
+    /// <summary>
+    /// Bit depth (bits per sample): 8, 16, 32 (24 not supported)
+    /// </summary>
+    public uint SampleSize;
+
+    /// <summary>
+    /// Number of channels (1-mono, 2-stereo)
+    /// </summary>
+    public uint Channels;
+}