Rebuild FFmpeg 4.3.1 (patched), discord-rpc, Opus, and OpenSSL 1.1.1i as Universal binaries

https://github.com/cgutman/moonlight-deps
4c2815b5f2045ef0e8b098ed2fa8c4f9c1f5cd77

Built locally with Xcode 12.3 with ARM64 targets enabled

libs/mac/include/libavutil/hwcontext.h

@@ -36,6 +36,7 @@ enum AVHWDeviceType {
     AV_HWDEVICE_TYPE_DRM,
     AV_HWDEVICE_TYPE_OPENCL,
     AV_HWDEVICE_TYPE_MEDIACODEC,
+    AV_HWDEVICE_TYPE_VULKAN,
 };
 
 typedef struct AVHWDeviceInternal AVHWDeviceInternal;
@@ -327,6 +328,26 @@ int av_hwdevice_ctx_create_derived(AVBufferRef **dst_ctx,
                                    enum AVHWDeviceType type,
                                    AVBufferRef *src_ctx, int flags);
 
+/**
+ * Create a new device of the specified type from an existing device.
+ *
+ * This function performs the same action as av_hwdevice_ctx_create_derived,
+ * however, it is able to set options for the new device to be derived.
+ *
+ * @param dst_ctx On success, a reference to the newly-created
+ *                AVHWDeviceContext.
+ * @param type    The type of the new device to create.
+ * @param src_ctx A reference to an existing AVHWDeviceContext which will be
+ *                used to create the new device.
+ * @param options Options for the new device to create, same format as in
+ *                av_hwdevice_ctx_create.
+ * @param flags   Currently unused; should be set to zero.
+ * @return        Zero on success, a negative AVERROR code on failure.
+ */
+int av_hwdevice_ctx_create_derived_opts(AVBufferRef **dst_ctx,
+                                        enum AVHWDeviceType type,
+                                        AVBufferRef *src_ctx,
+                                        AVDictionary *options, int flags);
 
 /**
  * Allocate an AVHWFramesContext tied to a given device context.