Unattended installer - Second iteration with improvements

[alberpilot]

After tagging the unified-unattended installer, we will move forward for including some improvements described in the following issues:

• The unattended installer should be released as a single artifact. All modules (libraries, resources, templates) must be joined into the mentioned artifact. The unattended installer development doesn't change, but a new tool for this artifact building must be created.
• All module functions must start with the name module prefix. (i.e. indexer_configureCertificates).
• All distributed messages must be reviewed, guiding the user to an unattended installation. Those messages must have links to documentation but, in addition to this, must be self-explained and could avoid the users going to the documentation for checking.
• Error messages must explain what is happening and links to the documentation, dependencies/requirement section.
• The unattended installer must detect the OS and check if it's compatible. Links to documentation are needed.
• Improve the error handling including set -Eeuxo pipefail, using traps, and including more fail information, like line number, error code, etc. (reference)
• Use printf instead of echo.
• Functions must return true or error code.
• Don't assume terminal capabilities. Check if $TERM is set as unknown, untested, or whatever. Don't use control codes like scape chars, tputs, etc.

Tasks

• Unattended installer modules functions must be prefixed by module name #1231
• Unattended installer single artifact builder #1232
• Distributed messages must be improved guiding the users without documentation need.
• Error messages must be improved with better and complete explanations.
• Unattended installer must detect and check OS compatibility #1228
• Improve the error handling with set -Eeuxo pipefail.
• echo replacement by printf.
• Return 0 or error values in functions.
• Check $TERM status and avoid control codes.
• Change the Wazuh API default password using the unattended installer.
• Unattended installer must remove end names blank spaces from config.yml #1205
• Unattended script must be able to chose what component is going to be removed #1210
• Kibana logs show error messages after unattended installation #847
• Apply preInstallation, packageInstallation, postInstallation functions modularization and template creations. (To define).
• Add option -o to wazuh-cert-tool and chose the output folder.
• Check if firewall block an incoming connection.
• Check all necessary dependencies including the all OS supoused included ones.
• Unattended installer must rollback also the installed dependencies #1239

Tentative

• Unattended must check dependencies independently #1234
• Deploy agents
• Add option to use unattended scripts offline #863
• Add upgrade option to the unattended script #862
• Fix unattended installation differences between unattended and step-by-step process #968