Add autohotkey Caps rebind

- Add an autohotkey keybind for caps lock.
 - Caps alone is Esc, Caps with another key in a CTRL modifier

autohotkey/README.md

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+Autohotkey is the way to rebind keys, and set macros in Windows.
+
+To make your scripts work on Windows load add them to your startup directory.
+
+Press `Windows + R`
+Type `shell:startup` and hit `Enter`
+Drop your scripts into there

autohotkey/caps_bind.ahk

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+; Caps press is Escape
+; Caps held with another key is CTRL
+#NoEnv  ; Recommended for performance and compatibility with future AutoHotkey releases.
+; #Warn  ; Enable warnings to assist with detecting common errors.
+SendMode Input  ; Recommended for new scripts due to its superior speed and reliability.
+;SetWorkingDir %A_ScriptDir%  ; Ensures a consistent starting directory.
+
+SetCapsLockState Off
+state:=false
+Esc::
+ state:= not state
+ if (state) {
+	 SetCapsLockState On
+ } else {
+	 SetCapsLockState Off
+ }
+ Return
+
+*CapsLock::
+	Send {LControl down}
+	Return
+*CapsLock up::
+	Send {LControl Up}
+	if (A_PriorKey=="CapsLock"){
+		if (A_TimeSincePriorHotkey < 1000)
+			Suspend On
+			Send, {Esc}
+			Suspend Off
+	}
+	Return
+; The next part is only relevant to users of Virtual Box, which interacts weirdly with AutoHotkey. The code below resets ctrl  and caps lock when a Virtual Box window is unfocused.
+InVB()
+{
+	return WinActive("ahk_exe VirtualBox.exe")
+}
+in_vb:=InVB()
+was_in_vb:=in_vb
+
+Gui +LastFound 
+hWnd := WinExist()
+DllCall( "RegisterShellHookWindow", UInt,Hwnd )
+MsgNum := DllCall( "RegisterWindowMessage", Str,"SHELLHOOK" )
+OnMessage( MsgNum, "ShellMessage" )
+
+ShellMessage( wParam,lParam )
+{
+ global in_vb
+ global was_in_vb
+ was_in_vb:=in_vb
+ in_vb:=InVB()
+ if (was_in_vb and not in_vb)
+ {
+	Suspend On
+	Send {LControl Up}
+	SetCapsLockState Off
+	Suspend Off
+ }
+}