[Windows] Error when running iio_info

[SrikanthPagadarai]

I grabbed the latest Azure builds for Windows and ran iio_info -s. It opens an error window with the message "The procedure entry point sp_blocking_read could not be located in the dynamic link library C:\WINDOWS\system32\libiio1.dll."

[tfcollins]

A few things:

• Based on the iss file libzstd is not included but its built against it in CI
• Serial support seems broken on Windows
• Python bindings are also broken on Windows

[cristina-suteu]

@tfcollins regarding the serial support , a fix was added here #1163 , is serial support still broken after this ?
as for the other things, i'm working on fixing them