Add list of authors and contributors

AUTHORS.txt

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+# This is the official list of project authors for copyright purposes.
+# This file is distinct from the CONTRIBUTORS.txt file.
+# See the latter for an explanation.
+#
+# Names should be added to this file as:
+# Name or Organization <email address>
+
+Intel Corp. <brand_q@intel.com>
+Frere-Jones Type <info@frerejones.com>

CONTRIBUTORS.txt

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+# This is the list of people who have contributed to this project,
+# and includes those not listed in `AUTHORS.txt` because they are not
+# copyright authors. For example, company employees may be listed
+# here because their company holds the copyright and is listed there.
+#
+# When adding J Random Contributor's name to this file, either J's
+# name or J's organization's name should be added to `AUTHORS.txt`
+#
+# Names should be added to this file as:
+# Name <email address>
+
+Fred Shallcrass
+Nina Stössinger
+Tobias Frere-Jones
+Matthew Turrini
+Intel Brand Identity Team