[SmartSkip]: Use pure-lua-hash.

[Mark-Joy]

On Windows, powershell hash takes several seconds (can be up to 1x secs) on the first run, and an average of 300-ms on subsequent runs. Pure lua hash takes only 1-ms even on first run. #151

[Eisa01]

Ah I know how we can approach it without forcing users to download the module. Basically, we can make it optional, if the user has the script-module then it will use pure lua, otherwise, it fall backs to powershell.

Can you do this modification?