Oxl-ansible-webui

Fixes:

* Quote value of prompted extra vars [23](https://github.com/O-X-L/ansible-webui/issues/23)
* SAML Authentication fixes [4](https://github.com/O-X-L/ansible-webui/issues/4)
* Execution-issues from cli [25](https://github.com/O-X-L/ansible-webui/issues/25)

Features:

* Ability to supply one-off credentials at execution [18](https://github.com/O-X-L/ansible-webui/issues/18)
* MariaDB, MySQL and PostgreSQL Support [24](https://github.com/O-X-L/ansible-webui/issues/24)
* Passing AW username & email as env-vars to Ansible [5](https://github.com/O-X-L/ansible-webui/issues/5)

Chore:

* Cleaned-up Credentials-API

* Completely refactored frontend (SvelteJS & TailwindCSS)
* Permission checks for scheduled jobs (job-owners) [c40f049c](https://github.com/O-X-L/ansible-webui/commit/c40f049c6a248ec682bbb03bf25dff4632381d91)
* Fix for job-form file-browsing when using isolated git-repo [19](https://github.com/O-X-L/ansible-webui/issues/19)
* Updated some API endpoints
* Implemented new Stats-Endpoint
* Some basic charts on the WebUI dashboard
* Logging of user logon/logoff/failed-logon

**BREAKING CHANGES**:

* Existing **Execution Prompts** are NOT compatible!
You will have to manually re-configure them.
* Existing **Permissions** are NOT compatible!
In this version the permission-system is only configurable using the Django-Admin interface.
It will be refactored in the next releases [15](https://github.com/O-X-L/ansible-webui/issues/15)

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* Disable data-refresh if in background
* Allow to save current form by using SHIFT+S
* Add missing become- and connect-user

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* Cleanup job-stati on startup
* Fix Log-view expand-on-waiting behavior
* Fix known_hosts cli-argument

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* Handle edge-case error of schedule
* Handle jobs without credentials
* Cleanup execution status if thread stopped
* Fix editing of credentials (*ssk-key invalid*)

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* Fix for Nginx config-example
* Fix for Log-Directory creation
* Enable SSH host-key checking by default (*ansible-runner seem to disable it by default*)
* Enhanced Buttons of Log Live-View
* Git-Repository Cleanup-Hook (Post Job-Run)
* Refactored runtime secret-handling ([ansible-runner](https://ansible.readthedocs.io/projects/runner/en/latest/intro))
* Disabling quick-execution button if custom-execution form is open

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