use okio.FileSystem in gen-tests (#2130)
use okio.FileSystem in gen-tests (#2130)

* Modernize WireCompiler tests and fix symlinks

* Adds windows job on CI

* Replace fullblock with its unicode

* All parsing replaces slashes to unix ones

* Makes tests work on both macos and windows

* use okio.FileSystem in gen-tests

Because why not?
square/wire,square/wire,square/wire,square/wire,square/wire,square/wire