Kaldi feedstock update on conda-forge

[mmcauliffe]

Hello,

I've recently updated the kaldi feedstock for conda-forge, and I was wondering if any Kaldi maintainers were interested in being added a maintainer there as well.

To get it working with the conda-forge system, I made some changes to the CMake build system. To compile some notes on these:

• Kaldi on conda-forge doesn't link to libfst.so, but rather to libfst.16.so (to allow for installation beside the OpenFst conda-forge package which is 1.8.1)
• On Windows, OpenFst binaries are included as well as Kaldi binaries (OpenFst on Conda doesn't support Windows)
• Removed building of online and online2 on Windows, as I was getting some compiler errors
• Added support for building fgmmbin on all platforms

I can make a PR for the ones that would be helpful generally (i.e. fgmmbin included in the CMake build).

[jtrmal]

Yes, would be good if you create a PR... some of these things should be useful. Thanks!

[mmcauliffe]

@jtrmal PR created here: #4669