Add Boost Software License 1.0.

_licenses/bsl-1.0.txt

@@ -0,0 +1,56 @@
+---
+title: Boost Software License 1.0
+spdx-id: BSL-1.0
+source: https://opensource.org/licenses/BSL-1.0
+
+description: This is a simple license that includes a clause on warranty, and encourages free and open use of software licensed under it.
+
+how: |
+    Create a text file (typically named LICENSE or LICENSE.txt) in the root of your source code and copy the text of the license into the file. Add a comment to source files based on the following template, substituting appropriate text for the italicized portion:
+    //          Copyright [fullname] [year].
+    // Distributed under the Boost Software License, Version 1.0.
+    //    (See accompanying file LICENSE_1_0.txt or copy at
+    //          http://www.boost.org/LICENSE_1_0.txt)
+
+using:
+  - Boost: http://www.boost.org/users/license.html
+
+permissions:
+  - commercial-use
+  - modifications
+  - distribution
+  - private-use
+
+conditions:
+  - include-copyright
+
+limitations:
+  - no-liability
+  - same-license
+
+---
+
+Boost Software License - Version 1.0 - August 17th, 2003
+
+Permission is hereby granted, free of charge, to any person or organization
+obtaining a copy of the software and accompanying documentation covered by
+this license (the "Software") to use, reproduce, display, distribute,
+execute, and transmit the Software, and to prepare derivative works of the
+Software, and to permit third-parties to whom the Software is furnished to
+do so, all subject to the following:
+
+The copyright notices in the Software and this entire statement, including
+the above license grant, this restriction and the following disclaimer,
+must be included in all copies of the Software, in whole or in part, and
+all derivative works of the Software, unless such copies or derivative
+works are solely in the form of machine-executable object code generated by
+a source language processor.
+
+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, TITLE AND NON-INFRINGEMENT. IN NO EVENT
+SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
+FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
+