* Update rules_haskell
This updates to the latest rules_haskell, which fixes a few issues on
Windows. Most importantly it flags a few Windows libraries as "system"
libraries, preventing Hazel to fail because they are not provided
through Bazel.
* Fix the streaming-commons build on Windows
This modifies our custom streaming-commons BUILD file to make it work on
Windows. In particular it swaps some system libraries, passes the
`-DWINDOWS` flag and enables the build of an extra module.
* Clean up bazel_tools BUILD file
This wraps a very long line for legibility.
* Fix shared object issues on Windows
* This fixes rules_haskell to use the correct Windows path separator on Windows.
GHC expects the LD_LIBRARY_PATH variable to be a list of semi-colon separated
paths, as opposed to a list of colon separated paths:
51fd357119/compiler/ghci/Linker.hs (L1646-L1650)
* This fixes the name of Haskell shared objects on Windows. By default
Bazel's cc_library generates '.so' files, whereas GHC expects a `.dll`
(or a few other extensions, non of which are `.so`):
51fd357119/rts/linker/PEi386.c (L684)
* Build daml-lf-ast on Windows CI
