Implement the source code license

Author: Corentin Wallez

CONTRIBUTING.md

@@ -5,6 +5,10 @@ Group](https://www.w3.org/community/gpu/), governed by the [W3C Community
 License Agreement (CLA)](http://www.w3.org/community/about/agreements/cla/). To
 make substantive contributions, you must join the CG.
 
+Contributions to the source code repository are subject to the terms of the
+[3-Clause BSD License](https://github.com/gpuweb/admin/blob/SourceCodeLicense/LICENSE.txt) with the
+[Additional Permissions File](https://github.com/gpuweb/admin/blob/SourceCodeLicense/PATENTS.txt).
+
 If you are not the sole contributor to a contribution (pull request), please identify all 
 contributors in the pull request comment.
 
@@ -21,4 +25,4 @@ If you added a contributor by mistake, you can remove them in a comment with:
 ```
 
 If you are making a pull request on behalf of someone else but you had no part in designing the 
-feature, you can remove yourself with the above syntax.
+feature, you can remove yourself with the above syntax.

SourceCodeLicense/LICENSE.txt

@@ -0,0 +1,26 @@
+Copyright <YEAR> <COPYRIGHT HOLDER&>
+
+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.

SourceCodeLicense/PATENTS.txt

@@ -0,0 +1,38 @@
+                           Additional Permissions File:
+
+   1. Subject to the terms and conditions of this license, each copyright
+      holder and contributor hereby grants to those receiving rights under this
+      license a perpetual, worldwide, non-exclusive, no-charge, royalty-free,
+      irrevocable (except for failure to satisfy the conditions of this license
+      and subject to section 2 of this license) patent license to make, have
+      made, use, offer to sell, sell, import, and otherwise transfer this
+      software, where such license applies only to those patent claims, already
+      acquired or hereafter acquired, licensable by such copyright holder or
+      contributor that are necessarily infringed by:
+
+      (a) its Contribution alone; or
+
+      (b) combination of its Contribution with the work of authorship to which
+          such Contribution was added by such copyright holder or contributor,
+          if, at the time the Contribution is added, such addition causes such
+          combination to be necessarily infringed. The patent license does not
+          apply to any other combinations that include the Contribution or to
+          any other software.
+
+      Except as expressly stated above, no patent rights or licenses from any
+      copyright holder or contributor are granted under this license, whether
+      expressly, by implication, estoppel or otherwise.
+
+   2. If You, as an individual or legal entity exercising permissions granted
+      by this License, institute, fund, or voluntarily join patent litigation
+      against any entity (excluding defensive cross-claims or counterclaims in
+      a lawsuit) alleging that the Contribution or open source project to which
+      this Contribution was added by the copyright holder or contributor
+      constitutes direct or contributory patent infringement, then any patent
+      licenses granted to You under section 1 of this license for that
+      Contribution or open source project terminate as of the date such
+      litigation is filed or joined.
+
+   “Contribution” means, for a copyright holder or contributor, any idea or
+   text submitted by such copyright holder or contributor for inclusion in the
+   open source project.