Removed criptography dependency in the l2sm operator, as it has security risks attached to it and it's no longer needed

Added screencast video on youtube that follows the guide procedure, to ease the user's understanding of the cdn example.

Quick installation

Added documentation to the examples section, for the cdn example and the build section, specifying how to use the build and push script

Added a working example of the L2S-M usage, showcasing the benefits of using L2S-M in isolating Pods

Added an assets folder for images and more resources in the repository.

Added an assets folder for images and more resources in the repository.

Added a default quick installation section, and passed the custom installation README to another subsection. Moved the vxlan configuration to an external md file.

- Added health checks in the containers to enable readiness and liveness probes

- Implemented Probes and initContainers so the installation follows a specific order without having to manage it.

Following the python guidelines of usage, the operator's Dockerfile has been updated, to use a requirements.txt outside the dockerfile.

Identation fixes

Implemented readinessProbe in l2sm-controller Deployment and added initContainers in l2sm-operator Deployment to ensure proper synchronization with l2sm-controller pod status before starting.

This change ensures that l2sm-operator does not start until l2sm-controller pod is in the Running state.

This commit introduces a new bash script, build_and_push_images.sh, which automates the process of building and pushing Docker images for l2sm-switch, l2sm-controller, and l2sm-operator.

This script simplifies the image creation and push workflow, providing options for building images, pushing images, or both.

Modified the switch subsystem to use a new initiation script that runs as a full process within the container. The script is now invoked using CMD in the Dockerfile, eliminating the direct creation of VXLANs. This change enhances the containerization approach and ensures a more streamlined and efficient initiation process.

This adjustment aligns with best practices for running processes within containers and improves the overall architecture of the switch subsystem.

Adjusted the file paths in the Dockerfiles to align with the recent repository restructuring. This ensures that the Docker images now correctly reference the files in their new locations.

This change was necessary to maintain consistency and compatibility with the updated repository structure. It ensures that the Docker images can be built successfully and reflects the latest organization of project files.

The source code directory has been moved from ./build to ./src.

This change was made to improve project organization and follow best practices.

Typo fix