Adding upgrade batch file for verus-cli for Windows and updating the README

kmd/windows/verus-cli/update-verus-agama.bat

@@ -0,0 +1,32 @@
+@echo off
+set AGAMA_DIR=%1
+if defined AGAMA_DIR (
+	goto :CHECK_DIR
+) else (
+	call :GET_AGAMA_DIR
+	goto :CHECK_DIR
+)
+
+:GET_AGAMA_DIR
+set /p AGAMA_DIR="Please enter the path to the Agama directory i.e ~\Users\{USER}\Downloads\Agama-win32-x64 :"
+goto :EOF
+
+:CHECK_DIR
+IF NOT EXIST %AGAMA_DIR% (
+	ECHO "Directory does not exist. No changes applied. Exiting.
+	goto :EOF
+) else (
+	goto :UPGRADE
+)
+goto :EOF
+
+:UPGRADE
+pushd %~dp0
+set SCRIPT_DIR=%CD%
+popd
+cd %SCRIPT_DIR%
+set TARGET=%AGAMA_DIR%\resources\app\assets\bin\win64\
+xcopy komodo*.exe %TARGET% /b/v/y || echo  UPGRADE FAILED && goto :EOF
+echo upgrade successful
+goto :EOF
+