Add GOVERNANCE.md and OWNERS files (#430)

* Add GOVERNANCE.md and OWNERS files

Closes #263

Signed-off-by: Sergio Castaño Arteaga <tegioz@icloud.com>

* Update OWNERS

Signed-off-by: Chris Aniszczyk <caniszczyk@gmail.com>

---------

Signed-off-by: Sergio Castaño Arteaga <tegioz@icloud.com>
Signed-off-by: Chris Aniszczyk <caniszczyk@gmail.com>
Co-authored-by: Chris Aniszczyk <caniszczyk@gmail.com>

GOVERNANCE.md

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+# GitVote Governance
+
+This document defines the project governance for GitVote including how someone become a maintainer, how decisions are made, how changes are made to the governance, and more.
+
+## Contributors
+
+Anyone can propose a change to GitVote. This includes the code, the documentation, and even the governance. Details on contributing can be found in the [CONTRIBUTING.md](CONTRIBUTING.md) file.
+
+## Maintainers
+
+Maintainers are responsible for the development and operation of the project. This includes but is not limited to:
+
+- Reviewing and merging pull requests
+- The operation of the GitVote service and GitHub application
+- Refining the projects governance
+- Overseeing the resolution and disclosure of security issues
+
+Changes to maintainers use the following rules:
+
+- New maintainers can be added with a [super-majority](https://en.wikipedia.org/wiki/Supermajority#Two-thirds_vote) vote. The vote must happen in a tracked location (e.g., mailing list, GitHub issue, etc).
+- If a maintainer is inactive for > 6 months they will automatically be removed unless a super-majority of the other maintainers agrees to extend the period of inactivity. This is useful when there is a known period of inactivity and a maintainer will be returning.
+- A maintainer may step down at any time and remove themselves.
+- If a maintainer needs to be removed, a super-majority vote of the other maintainer is required. This vote needs to happen in a tracked location.
+
+## Decision Making
+
+There are 3 ways decisions can be made for non-code related decisions. Those are:
+
+1. [Lazy-consensus](http://communitymgt.wikia.com/wiki/Lazy_consensus) is the default method to make decisions.
+2. When a lazy-consensus decision cannot be made it will move to a [majority](https://en.wikipedia.org/wiki/Majority) vote unless otherwise specified in this governance.
+3. Some decisions require a super-majority of maintainer to approve. Those include:
+   - Changes to the governance
+   - Removing a maintainer
+   - Licensing and intellectual property changes
+
+Changes to source code requires a maintainer to approve the changes.

OWNERS

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+maintainers:
+- tegioz
+- cynthia-sg
+- caniszczyk