Update license, contact, donate for many projects.

CONTACT.md

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+Contact
+=======
+
+Please do not open pull requests without talking to me first. For serious issues and bugs, open a GitHub issue. If you just have a question, please send an email to `contact@voussoir.net`.
+
+If you want to chat in real time, I am `voussoir` on [freenode](https://webchat.freenode.net/) and `voussoir#7582` on Discord. Please email me first so we can coordinate.
+
+I also mirror my work to other git services:
+
+- https://github.com/voussoir
+
+- https://gitlab.com/voussoir
+
+- https://codeberg.org/voussoir

DONATE.md

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+Donate
+======
+
+Thank you for your interest in my work. If my software has been helpful to you, I would enjoy hearing about it in an email. If you'd like to make a small donation, click one of these finely crafted artisanal links:
+
+https://www.paypal.com/donate?business=AFXM36ZYB6S5A
+
+https://buymeacoffee.com/voussoir

LICENSE.txt

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+BSD 3-Clause License
+
+Copyright (c) 2021, Ethan Dalool aka voussoir
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+   this list of conditions and the following disclaimer in the documentation
+   and/or other materials provided with the distribution.
+
+3. Neither the name of the copyright holder nor the names of its
+   contributors may be used to endorse or promote products derived from
+   this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.