public: build.h is under public domain now, so it can be added to any HLSDK

public/build.h

@@ -1,16 +1,33 @@
 /*
 build.h - compile-time build information
-Copyright (C) 2019 a1batross
 
-This program is free software: you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
+This is free and unencumbered software released into the
+public domain.
+
+Anyone is free to copy, modify, publish, use, compile, sell,
+or distribute this software, either in source code form or as
+a compiled binary, for any purpose, commercial or
+non-commercial, and by any means.
+
+In jurisdictions that recognize copyright laws, the author or
+authors of this software dedicate any and all copyright
+interest in the software to the public domain. We make this
+dedication for the benefit of the public at large and to the
+detriment of our heirs and successors. We intend this
+dedication to be an overtact of relinquishment in perpetuity of
+all present and future rights to this software under copyright
+law.
+
+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 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.
+
+For more information, please refer to https://unlicense.org
 */
 #pragma once
 #ifndef BUILD_H