fix default folders for opencover, output xml, and powershell exe path (#3308)
fix default folders for opencover, output xml, and powershell exe path (#3308)


PaulHigin/PowerShell,PaulHigin/PowerShell,JamesWTruher/PowerShell-1,JamesWTruher/PowerShell-1,TravisEz13/PowerShell,JamesWTruher/PowerShell-1,TravisEz13/PowerShell,TravisEz13/PowerShell,daxian-dbw/PowerShell,JamesWTruher/PowerShell-1,TravisEz13/PowerShell,PaulHigin/PowerShell,PaulHigin/PowerShell,daxian-dbw/PowerShell,daxian-dbw/PowerShell,daxian-dbw/PowerShell