Added needed files for the move to cnfc-tags

Signed-off-by: Zvonko Kaiser <[email protected]>

CONTRIBUTING.md

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+# Contribute to CDI
+
+Want to contribute to the Container Device Interface Project? Awesome!
+We welcome contributions. In addition to signing your work as described in
+the section below we ask that the following guidelines be considered when
+opening, reviewing, and merging pull requests.
+
+* No one should merge their own code or code from their own organization
+* Reviewers should include people from an organization that is not your own
+* If no changes have been requested by other reviewers the (last) reviewer
+merges the pull request on approval
+* The CNCF [#tag-runtime](https://cloud-native.slack.com/archives/CPBE97SMU)
+Slack channel should be used for discussion
+
+## Community Meetings
+
+We have regular community meetings in place to discuss CDI-related topics.
+The current cadence of the meetings is bi-weekly. You can find the meeting
+details in the [CNCF Community Meetings Calendar](https://www.cncf.io/calendar)
+by looking for `CNCF TAG Runtime Container Device Interface (COD) Working Group`.
+The calendar entry has an up-to-date link to our meeting agenda. The agenda has
+a summary of past meeting topics and discussions and it can be freely edited by
+anyone to propose topics for upcoming meetings.
+
+You can [search the calendar for our community meetings](https://tockify.com/cncf.public.events/monthly?search=Container%20Device%20Interface).
+
+## Sign your work
+
+The sign-off is a simple line at the end of the explanation for the patch. Your
+signature certifies that you wrote the patch or otherwise have the right to pass
+it on as an open-source patch. The rules are pretty simple: if you can certify
+the below (from [developercertificate.org](http://developercertificate.org/)):
+
+```
+Developer Certificate of Origin
+Version 1.1
+
+Copyright (C) 2004, 2006 The Linux Foundation and its contributors.
+1 Letterman Drive
+Suite D4700
+San Francisco, CA, 94129
+
+Everyone is permitted to copy and distribute verbatim copies of this
+license document, but changing it is not allowed.
+
+Developer's Certificate of Origin 1.1
+
+By making a contribution to this project, I certify that:
+
+(a) The contribution was created in whole or in part by me and I
+    have the right to submit it under the open source license
+    indicated in the file; or
+
+(b) The contribution is based upon previous work that, to the best
+    of my knowledge, is covered under an appropriate open source
+    license and I have the right under that license to submit that
+    work with modifications, whether created in whole or in part
+    by me, under the same open source license (unless I am
+    permitted to submit under a different license), as indicated
+    in the file; or
+
+(c) The contribution was provided directly to me by some other
+    person who certified (a), (b) or (c) and I have not modified
+    it.
+
+(d) I understand and agree that this project and the contribution
+    are public and that a record of the contribution (including all
+    personal information I submit with it, including my sign-off) is
+    maintained indefinitely and may be redistributed consistent with
+    this project or the open source license(s) involved.
+```
+
+Then you just add a line to every git commit message:
+
+    Signed-off-by: Joe Smith <[email protected]>
+
+Use your real name (sorry, no pseudonyms or anonymous contributions.)
+
+If you set your `user.name` and `user.email` in your git config, you can
+sign your commit automatically with `git commit -s`.

SECURITY.md

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+# Security Policy
+

code-of-conduct.md

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+# Code of Conduct
+
+Please refer to the [CNCF Code of Conduct](https://github.com/cncf/foundation/blob/main/code-of-conduct.md).