Add @ts-defold/types (#72)

@ts-defold/types started as a fork of the type-generator and types listed here: https://github.com/dasannikov/DefoldTypeScript/blob/master/defold.d.ts a and is now a more feature-complete solution with active development. The link here also provides attribution to the OG @dasannikov implementation.

Author: thejustinwalsh

docs/getting-started.md

@@ -76,7 +76,7 @@ The real power of this transpiler is usage together with good declarations for t
 
 - [Lua Standard Library](https://github.com/TypeScriptToLua/lua-types)
 - [Dota 2 Custom Games](https://github.com/ModDota/API/tree/master/declarations/server) ([template](https://github.com/ModDota/TypeScriptAddonTemplate))
-- [Defold Game Engine Scripting](https://github.com/dasannikov/DefoldTypeScript/blob/master/defold.d.ts)
+- [Defold Game Engine Scripting](https://github.com/ts-defold/types)
 - [LÖVE 2D Game Development](https://github.com/hazzard993/love-typescript-definitions)
 - [World of Warcraft - Addon Development](https://github.com/wartoshika/wow-declarations)
 - [World of Warcraft Classic - Addon Development](https://github.com/wartoshika/wow-classic-declarations)