build: FtpPlugin: restore build with low VC versions (VC10, VC13)
build: FtpPlugin: restore build with low VC versions (VC10, VC13)

FarGroup/FarManager,FarGroup/FarManager,FarGroup/FarManager,johnd0e/FarManager,johnd0e/FarManager,johnd0e/FarManager,johnd0e/FarManager,FarGroup/FarManager,FarGroup/FarManager,FarGroup/FarManager,FarGroup/FarManager,FarGroup/FarManager,johnd0e/FarManager,johnd0e/FarManager,johnd0e/FarManager,johnd0e/FarManager