Add initial CentOS 3.9 root filesystem structure and essential scripts

- Created default user environment files: .bash_logout, .bash_profile, and .bashrc.
- Added symbolic links for dynamic linker and various libraries.
- Included essential binaries in /sbin for system management (e.g., fdisk, mkfs, hwclock).
- Implemented RPM verification script to check availability of required packages in CentOS vault.
- Established basic directory structure for logs and mail.
- Added a tarball for external libraries.

centos39-rootfs/etc/securetty

@@ -0,0 +1,23 @@
+console
+vc/1
+vc/2
+vc/3
+vc/4
+vc/5
+vc/6
+vc/7
+vc/8
+vc/9
+vc/10
+vc/11
+tty1
+tty2
+tty3
+tty4
+tty5
+tty6
+tty7
+tty8
+tty9
+tty10
+tty11