Faraday-agent-dispatcher

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* [ADD] Add HCL Appscan executer 186

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* [DEL] Now nuclei doesn't check if the target is an ip
* [MOD] Add a fixes for bandit vuln:
- Replace assert return code with a if
- Remove default x_token in nessus executor

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* [ADD] Add new Sonar Qube executor
* [ADD] Add tenableio executor
* [FIX] Make gvm executor compatible with new version of python-gvm
* [FIX] Now if a venv is int or float it will convert to string

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* Add Qualys executor
* [MOD] Change pgrep for psutil in zap executor

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* Now InsighVM's executer will executa a scan if a site_id is provided
* Add tags for plugins
* Add installation in docker file for nmap script: vulners
* Now the api-key from zap is a enviroment variable
* [FIX] Change AGENT_CONFIG_HOSTNAME_RESOLUTION por AGENT_CONFIG_RESOLVE_HOSTNAME
* Update docs

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* Add timeout parameter to arachni's executor
* Add python2.7, w3af and its dependencies to docker image
* Add ignore_info and hostname_resolution options for most executors.
* Nessus now list in the logs the available templates and uses posixpath.join instead of concat strings.
Nikto now uses only requieres TARGET_URL argument.
* Fix logs and change .format to fstrings
* Remove ws from dispatcher.yaml.
* Now faraday-dispatcher send the parameters of the executors when it
connects to faraday server. Also it checks if there are new enviroment
variables defined in the manifest file and warn the user.