changing driver letter in sftp-server tested using usb drives; missing
first entry on a top root directory is now shown correctly. ls -l output
cleaned up and now correctly show file and directory attributes.
strmode() function implemented for Windows like it is available in
Unix/Linux OS.
Use new compile flag WIN32_VS to add/change logic of sftp client and
sftp server codes so that MS Visual Studio 2015 compiler and runtime can
be used. opendir(), readdir(), closedir() directory APIs and basename()
API of Unix/Linux are implemented in Windows as they are not available
in Windows/VisualStudio C-runtime. win32_dirent.c and win32_dirent.h
files added as dirent.c and dirent.h are not available in Windows and we
do not want to affect mingW/gcc builds for Windows which have those
files available.
quamrulmina