Fixes #625: Add YETI Connector

[sp35]

Description

Adds connector for YETI platform

Related issues

#625

Type of change

• New feature (non-breaking change which adds functionality).

Checklist

• The pull request is for the branch develop
• If I added a new analyzer, I updated the file Usage. If the analyzer provides additional optional configuration, I added the available options here: Advanced-Usage
• If I added external libraries/packages that use restrictive licenses, please add them in the ReadMe - Legal Notice section
• I added new secrets in the files env_file_app_template, env_file_app_ci and in the docs: Installation
• The tests gave 0 errors.
• Black gave 0 errors.
• Flake gave 0 errors.
• I squashed the commits into a single one. (optional, they will be squashed anyway by the maintainer)

Real World Example

[sp35]

#426 (comment)

[codecov]

Codecov Report

Merging #631 (60dfd6c) into develop (aa8820f) will increase coverage by 10.36%.
The diff coverage is 83.80%.

@@             Coverage Diff              @@
##           develop     #631       +/-   ##
============================================
+ Coverage    66.75%   77.12%   +10.36%     
============================================
  Files           95      144       +49     
  Lines         3706     5438     +1732     
  Branches       519      621      +102     
============================================
+ Hits          2474     4194     +1720     
+ Misses         941      916       -25     
- Partials       291      328       +37     

Impacted Files	Coverage Δ
...pp/analyzers_manager/file_analyzers/vt/vt3_scan.py	0.00% <0.00%> (ø)
..._manager/observable_analyzers/dns/dns_responses.py	71.42% <ø> (ø)
api_app/documents.py	92.59% <ø> (ø)
api_app/permissions.py	100.00% <ø> (ø)
api_app/signal_handlers.py	95.23% <ø> (ø)
api_app/urls.py	100.00% <ø> (ø)
intel_owl/wsgi.py	0.00% <ø> (ø)
...pi_app/analyzers_manager/file_analyzers/pe_info.py	76.05% <25.00%> (ø)
api_app/admin.py	80.00% <28.57%> (ø)
...i_app/analyzers_manager/file_analyzers/pdf_info.py	77.27% <33.33%> (ø)
... and 226 more

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