merge backup task - ensure git installed

Backup task now backup every folder possible for server where pve and pbs reside on the same host
add git install before it's needed to retreive files

remove multiple versions

Following some recent changes, a lot of small fixes have been done, making hard to follow between versions and patches applied into "sub-versions"
This change will make it more easy to check which version is used to ensure latest is used.

Improvements

Changed remove subscription method for a way better one (thanks to Adrien Linuxtricks)
fixed the way to check if subscription removal is done or not
mail menu now install mailutils in order to be sure both pve and pbs can send notifications.
add host infos to test mail (hostname and date)

Correction to Swap

Correction to Swap settings in order to ensure it resits reboots

Update mail test for more simplicity.

Update mail test for more simplicity

Add check for root rights

Add an exit if script is not ran as root

check swap existance

add check of swap existence to allow settings edition

Major update

Added fonction to backup and restore pve and pbs configurations

small updates

release only meant to have small changes archived before major update

fix no-subscription check for V7

1.0.1

Update proxmox_toolbox.sh