Add syntax highlighting for Turing (#3052)

* Change Turing's colour to red

* Add a grammar for Turing

.gitmodules

@@ -740,3 +740,6 @@
 [submodule "vendor/grammars/atom-language-clean"]
 	path = vendor/grammars/atom-language-clean
 	url = https://github.com/timjs/atom-language-clean.git
+[submodule "vendor/grammars/language-turing"]
+	path = vendor/grammars/language-turing
+	url = https://github.com/Alhadis/language-turing

grammars.yml

@@ -386,6 +386,8 @@ vendor/grammars/language-supercollider:
 - source.supercollider
 vendor/grammars/language-toc-wow:
 - source.toc
+vendor/grammars/language-turing:
+- source.turing
 vendor/grammars/language-wavefront:
 - source.wavefront.mtl
 - source.wavefront.obj

lib/linguist/languages.yml

@@ -3738,7 +3738,7 @@ Thrift:
 
 Turing:
   type: programming
-  color: "#45f715"
+  color: "#cf142b"
   extensions:
   - .t
   - .tu

vendor/licenses/grammar/language-turing.txt

@@ -0,0 +1,18 @@
+---
+type: grammar
+name: language-turing
+license: isc
+---
+Copyright (c) 2016, 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.