Add recognition and classification of WebAssembly (#3650)

vendor/README.md

@@ -370,6 +370,7 @@ This is a list of grammars that Linguist selects to provide syntax highlighting
 - **Wavefront Material:** [Alhadis/language-wavefront](https://github.com/Alhadis/language-wavefront)
 - **Wavefront Object:** [Alhadis/language-wavefront](https://github.com/Alhadis/language-wavefront)
 - **Web Ontology Language:** [textmate/xml.tmbundle](https://github.com/textmate/xml.tmbundle)
+- **WebAssembly:** [Alhadis/language-webassembly](https://github.com/Alhadis/language-webassembly)
 - **WebIDL:** [andik/IDL-Syntax](https://github.com/andik/IDL-Syntax)
 - **wisp:** [atom/language-clojure](https://github.com/atom/language-clojure)
 - **World of Warcraft Addon Data:** [nebularg/language-toc-wow](https://github.com/nebularg/language-toc-wow)

vendor/licenses/grammar/language-webassembly.txt

@@ -0,0 +1,18 @@
+---
+type: grammar
+name: language-webassembly
+license: isc
+---
+Copyright (c) 2016-2017, John Gardner
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.