Adding features for Hyper Backup and Hyper Backup Vault

[joeperpetua]

Good morning!

The following functions were added to the Hyper Backup API:

Functions	Description
backup_task_run()	run task
backup_task_cancel()	cancel ongoing task
backup_task_suspend()	suspend ongoing task
backup_task_discard()	discard suspended task
backup_task_resume()	resume suspended task
backup_task_remove()	remove one or more tasks
integrity_check_run()	run integrity check for given task
integrity_check_cancel()	cancel ongoing integrity check
hb_logs_get()	get Hyper Backup UI logs

And these for the Hyper Backup Vault API:	Functions	Description
vault_concurrency_get()	get number of concurrent tasks allowed to run in HB Vault
vault_concurrency_set()	set number of concurrent tasks allowed to run in HB Vault
vault_target_settings_get()	get settings of target
vault_task_statistics_get()	get statistics from task
vault_target_logs_get()	get logs of specific target

The existing functions were documented and modified to match the rest of the codebase style.

[N4S4]

Thank you, merged! Great job!