Drastically reduce listed built-ins in AutoIt
Drastically reduce listed built-ins in AutoIt

Reference:

- Built-in functions: https://www.autoitscript.com/autoit3/docs/functions.htm
- Preprocessor keywords: https://www.autoitscript.com/autoit3/docs/intro/lang_directives.htm

Fixes #895

aurusov/highlight.js,carlokok/highlight.js,teambition/highlight.js,MakeNowJust/highlight.js,palmin/highlight.js,MakeNowJust/highlight.js,sourrust/highlight.js,Sannis/highlight.js,isagalaev/highlight.js,bluepichu/highlight.js,sourrust/highlight.js,highlightjs/highlight.js,teambition/highlight.js,aurusov/highlight.js,Sannis/highlight.js,highlightjs/highlight.js,isagalaev/highlight.js,StanislawSwierc/highlight.js,bluepichu/highlight.js,carlokok/highlight.js,palmin/highlight.js,Sannis/highlight.js,bluepichu/highlight.js,carlokok/highlight.js,highlightjs/highlight.js,lead-auth/highlight.js,palmin/highlight.js,carlokok/highlight.js,MakeNowJust/highlight.js,teambition/highlight.js,sourrust/highlight.js,StanislawSwierc/highlight.js,highlightjs/highlight.js,aurusov/highlight.js