Tweaks for Windows

Tools for managing Windows setting

`hvswitch`.cmd

Description: Microsoft Hyper-V switch on/off
Dependencies: Windows (tested version 10.0.19043)

POSITION	PARAMETERS	DESCRIPTION	DEFAULT
1	[qn]	execution without pauses	`None`
2	[y]	enable Hyper-V, if it off	`None`
2	[n]	disable Hyper-V, if it on	`None`

Example usage in terminal:

.\hvswitch.cmd qn y