fix: Correct folder naming of Sphinx builder.

debian11-sphinx-builder's folder was misnamed. This commit corrects this
error.

feat: Add debian12-maven machine to the repository.

This commit adds a new debian12-maven VM, which installs a vanilla Maven
on top of Debian 12. No other config is done.

proj: Debian Sphinx Builder machine has been added.

This is a machine with a single core and 1GB of RAM, and can build
Sphinx documentation sites out of the box.

Doc: Revise README.md to reflect new memory sizes.

README.md is improved to show how much RAM and VRAM each VM has.

Feat: Increase video memory of VMs to 128MB.

To be able to use greater desktops, video RAM of both VMs is bumped to
128MB.

Feat: Bump RAM of both Back in Time VMs to 4096MB.

Increasing RAM will allow a more smoother experience and allow more
realistic testing.

Fix: Add user creation script to Debian 11 VM.

This commit adds the user creation script to Debian 11VM. Also clarifies
the Post-Up messages of both Debian 11 and Debian 12 VMs.

Fluff: Change license filename to COPYING.

Fix: Improve machine up messages for readability.

Add Debian 11 & 12 Back in Time VMs.

This commit adds two new VMs for Back in Time testing. Both VMs run XFCE4
with latest Back in Time available in the repositories, so allows for turnkey
testing.

Debian 12 disabled automated VirtualBox Guest Additions installations since
the Vagrant VBGuest plugin is not compatible with Debian Testing yet.

Merge pull request #14 from hbayindir/debian-rust-playground

Upgrade debian-docker-lab to Debian/Bullseye64.

Upgrade debian-docker-lab to Debian/Bullseye64.

Merge pull request #13 from hbayindir/debian-rust-playground

Upgrade Rust Playground to use official Rust.

Upgrade Rust Playground to use official Rust.

Since the Rust packages coming from Debian are not the latest ones, and caused
problems during testing, a new VM using official Rust version is made.

This version works as it should for the cases I've tested.

Merge pull request #12 from hbayindir/debian-rust-playground

Add "Debian Rust Playground" VM.

Add "Debian Rust Playground" VM.

This commit adds a new Debian Stable based Rust Playground.

Merge pull request #11 from hbayindir/ubuntu20.04-ssh-oidc_client

Add new Ubuntu 20.04 SSH-OIDC client machine.

Add new Ubuntu 20.04 SSH-OIDC client machine.

This commit adds a new SSH-OIDC client for testing local SSH-OIDC servers.

Merge branch 'master' of github.com:hbayindir/vagrant-machines

Add a simple FTP server.

A FTP server based on vsftpd is added.