feat(mount): process /etc/fstab during initialization (#12)

Add mount -a command to process /etc/fstab entries, enabling virtiofs shares

Author: appcypher

Cargo.lock

@@ -449,6 +449,9 @@ static int mount_filesystems()
     /* May fail if already exists and that's fine. */
     symlink("/proc/self/fd", "/dev/fd");
 
+	/* Process /etc/fstab to mount additional filesystems, including virtiofs shares */
+	system("/bin/mount -a")
+
     return 0;
 }