[docker] Add vscode devcontainer

[SYNchroACK]

Proposed changes

• Add vscode devcontainer to help the community to develop fast without having to deal with all the stack, dependencies, etc..
• A standard way to develop opencti for everyone

Let me know if I should add documentation about the procedure.

Note: this pull request is related to this one OpenCTI-Platform/docker#62

opencti_devenv.mp4

[codecov]

Codecov Report

Merging #2120 (2311d89) into master (756aefc) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #2120   +/-   ##
=======================================
  Coverage   75.81%   75.81%           
=======================================
  Files         212      212           
  Lines       20129    20129           
  Branches     3246     3246           
=======================================
  Hits        15260    15260           
  Misses       4279     4279           
  Partials      590      590           

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