Add Docker environment

[AlexRuiz7]

Description

This PR adds a basic Docker environment to run wazuh-indexer and its tooling.

Issues Resolved

#62

Check List

• New functionality includes testing.
  • All tests pass
• New functionality has been documented.
  • New functionality has javadoc added
• Commits are signed per the DCO using --signoff
• Commit changes are listed out in CHANGELOG.md file (See: Changelog)
• GitHub issue/PR created in OpenSearch documentation repo for the required public documentation changes (#[Issue/PR number])

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[AlexRuiz7]

Advantages:

• Simple and fast
  Disadvantages:
• Uses the root user. OpenSearch cannot be run as root.

There may probably be a workaround, but it would require time and as approach #66 works, I think it is better use that one instead.