Integrate qa-docs into wazuh-qa framework

[roronoasins]

Related issue
#1800

Description

QADOCS use is required not only for users but the QA framework. We decided to include this tool within the QA framework so there are no path dependencies.

It has been moved from docs/DocGenerator to deps/wazuh_testing/qa_docs and is installed running the deps/wazuh_testing/setup.py(npm modules installation needed, now working if you manually install them. It has to be changed).

Use: qa-docs [-h] [-s] [-v] [-t] [-d] [-i INDEX_NAME] [-l LAUNCH_APP] [-T TEST_INPUT] [-o OUTPUT_PATH] -I TEST_DIR

optional arguments:
  -h, --help      show this help message and exit
  -s              Run a sanity check
  -v              Print version
  -t              Test configuration
  -d              Enable debug messages.
  -i INDEX_NAME   Indexes the data to elasticsearch.
  -l LAUNCH_APP   Indexes the data and launch the application.
  -T TEST_INPUT   Test name or path to parse.
  -o OUTPUT_PATH  Output directory path.
  -I TEST_DIR     Tests input directory

The new use is specified here. The wiki will be updated once this branch is merged.

The entire changes in QADOCS are located in #1800.

Few examples:
In order to run qa-docs, you need to specify the tests directory that you want to parse.

• Parsing all included directories within tests directory

(docgen) luisgr@luisgr-pc:~/work/wazuh-qa/deps/wazuh_testing$ qa-docs -I ../../tests/

• Parsing single test

(docgen) luisgr@luisgr-pc:~/work/wazuh-qa/deps/wazuh_testing$ qa-docs -I ../../tests/ -T test_general_settings_enabled
test_vulnerability_detector/test_general_settings/test_general_settings_enabled.py: 4

test_system: ['linux']
test_vendor: ['redhat', 'debian', 'ubuntu', 'alas', 'arch-linux', 'centos']
test_version: ['centos6', 'centos7', 'centos8', 'rhel6', 'rhel7', 'rhel8', 'buster', 'stretch', 'wheezy', 'bionic', 'xenial', 'trusty', 'amazon-linux-1', 'amazon-linux-2']
test_target: ['manager']
test_wazuh_min_version: 3.13
(docgen) luisgr@luisgr-pc:~/work/wazuh-qa/deps/wazuh_testing$ qa-docs -I ../../tests/ -T test_general_settings_enabled -o /tmp

[jmv74211]

Good job, but a lot of changes are required. We will see all this in a live review.