Adding Dart Template (Fixes #394)

Author: StartAutomating

docs/SupportedLanguages.md

@@ -14,6 +14,7 @@ These are all of the transpilers currently included in PipeScript:
 |[CPlusPlus.Template](Transpilers/Templates/CPlusPlus.Template.psx.ps1)    |C/C++ Template Transpiler.      |```\.(?>c\\|cpp\\|h\\|swig)$``` |
 |[CSharp.Template](Transpilers/Templates/CSharp.Template.psx.ps1)          |C# Template Transpiler.         |```\.cs$```                     |
 |[CSS.Template](Transpilers/Templates/CSS.Template.psx.ps1)                |CSS Template Transpiler.        |```\.s{0,1}css$```              |
+|[Dart.Template](Transpilers/Templates/Dart.Template.psx.ps1)              |Dart Template Transpiler.       |```\.(?>dart)$```               |
 |[Go.Template](Transpilers/Templates/Go.Template.psx.ps1)                  |Go Template Transpiler.         |```\.go$```                     |
 |[HAXE.Template](Transpilers/Templates/HAXE.Template.psx.ps1)              |Haxe Template Transpiler.       |```\.hx$```                     |
 |[HCL.Template](Transpilers/Templates/HCL.Template.psx.ps1)                |HCL Template Transpiler.        |```\.hcl$```                    |