Generate documentation files

[pferrariuy]

Generate and review the following files:

• [x] readme.md
• [x] contribution.md
• [x] code_of_conduct.md
• [x] pull_request_template.md
• [x] security_policies.md
• [x] issue_template.md
• [x] new_feature_request_template.md
• [x] code_style_java.md
• [x] code_style_react.md
• [x] code_style_python.md
• [x] code_style_sql.md
• [x] proyect_charter.md

[pferrariuy]

Check to change issue_template.md and feature_request_template.md to: https://docs.github.com/es/communities/using-templates-to-encourage-useful-issues-and-pull-requests/about-issue-and-pull-request-templates