* cleaned up style, linked to external htslib
* removed htslib/bcfrools/samtools deps, use bundled libs instead
the pysam package includes the necessary libs to link to, so it wasn't even using linked libs when building
* fixed style
* revert to using external htslib
currently uses bundled samtools and bcftools, and there is no way to use external versions for those dependencies
* added libs property to htslibs package
added support for lib64
* added htslib name
779e80b7c1