doc: add boilerplate files to repo (#213)

* doc: add boilerplate files to repo

Signed-off-by: Michael Dawson <[email protected]>

Author: mhdawson

Diff for: .github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,30 @@
+<!--
+Before submitting a pull request, please read
+https://github.com/nodejs/node-addon-examples/blob/main/CONTRIBUTING.md.
+
+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.
+-->

Diff for: CODE_OF_CONDUCT.md

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+# Code of Conduct
+
+The Node.js Code of Conduct, which applies to this project, can be found at
+https://github.com/nodejs/admin/blob/HEAD/CODE_OF_CONDUCT.md.

Diff for: CONTRIBUTING.md

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+
+# 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.
+
+

Diff for: LICENSE.md

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+The MIT License (MIT)
+=====================
+
+Copyright (c) 2017 Node.js node-addon-examples collaborators
+-----------------------------------
+
+*Node.js node-addon-examples collaborators listed at <https://github.com/nodejs/node-addon-examples/graphs/contributors>*
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.