fix: Add missing metadata files

AUTHORS

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+# This is the list of ansys-tools-visualization-interface's significant contributors.
+#
+# This file does not necessarily list everyone who has contributed code.
+#
+# For contributions made under a Corporate CLA, the organization is
+# added to this file.
+#
+# If you have contributed to the repository and wish to be added to this file
+# please submit a request.
+#
+#
+ANSYS, Inc.

CODE_OF_CONDUCT.md

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+# Contributor covenant code of conduct
+
+## Pledge
+
+In the interest of fostering an open and welcoming environment,
+all contributors and maintainers pledge to making participation
+in the Ansys project and community a harassment-free experience
+for everyone, regardless of age, body size, disability, ethnicity,
+sex characteristics, gender identity and expression, level of
+experience, education, socio-economic status, nationality, personal
+appearance, race, religion, or sexual identity and orientation.
+
+## Standards
+
+Examples of behavior that contribute to creating a positive environment
+include:
+
+* Using welcoming and inclusive language
+* Being respectful of differing viewpoints and experiences
+* Gracefully accepting constructive criticism
+* Focusing on what is best for the community
+* Showing empathy towards other community members
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery and unwelcome sexual
+  attention or advances
+* Trolling, insulting/derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or electronic
+  address, without explicit permission
+* Other conduct which could reasonably be considered inappropriate in a
+  professional setting
+
+## Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable
+behavior and are expected to take appropriate and fair corrective action in
+response to any instances of unacceptable behavior.
+
+Project maintainers have the right and responsibility to remove, edit, or reject
+comments, commits, code, wiki edits, issues, and other contributions that are
+not aligned to this Code of Conduct, or to ban temporarily or permanently any
+contributor for other behaviors that they deem inappropriate, threatening,
+offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies both within project spaces and in public spaces
+when an individual is representing the project or its community. Examples of
+representing a project or community include using an official project email
+address, posting using an official social media account, or acting as an appointed
+representative at an online or offline event. Representation of a project may be
+further defined and clarified by project maintainers.
+
+## Attribution
+
+This code of conduct is adapted from the [Contributor Covenant][homepage],
+version 1.4, available at
+https://www.contributor-covenant.org/version/1/4/code-of-conduct.html
+
+[homepage]: https://www.contributor-covenant.org
+
+For answers to common questions about this code of conduct, see
+https://www.contributor-covenant.org/faq

CONTRIBUTING.md

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+# Contribute
+
+Overall guidance on contributing to a PyAnsys library appears in the
+[Contributing] topic in the *PyAnsys developer's guide*. Ensure that you
+are thoroughly familiar with this guide before attempting to contribute to
+ansys-tools-visualization-interface.
+
+The following contribution information is specific to X.
+
+[Contributing]: https://dev.docs.pyansys.com/how-to/contributing.html

CONTRIBUTORS.md

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+# Contributors
+
+## Project Lead or Owner
+
+* [Alex Fernandez Luces](https://github.com/AlejandroFernandezLuces)
+
+## Individual Contributors
+
+* [Roberto Pastor Muela](https://github.com/RobPasMue)