[DO-971] ffmpeg recipe with requirements (!9)

Co-authored-by: aleksandr.vodyanov <aleksandr.vodyanov@avroid.tech>
Reviewed-on: https://git.avroid.tech/Conan/conan_build/pulls/9

recipes/xorg/all/test_package/test_package.c

@@ -0,0 +1,26 @@
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+
+#include <X11/Xauth.h>
+
+#include <X11/SM/SMlib.h>
+
+#include <stdio.h>
+
+int main() {
+    Display *display = XOpenDisplay(NULL);
+
+    if (!display) {
+        printf("XOpenDisplay failed\n");
+        return 0;
+    }
+
+    {
+        char *xau_file_name = XauFileName();
+        if (xau_file_name)
+            printf("XauFileName: %s\n", xau_file_name);
+    }
+
+    XCloseDisplay(display);
+    SmcSetErrorHandler(NULL);
+}