Semibin

* multi_easy_bin: Fix multi_easy_bin with --write-pre-recluster (128)

* train_self: Fix bug with --mode
* concatenate_fasta: Fix bug with compression
* bin_short: Make alias work

* SemiBin: Better error checking throughout
* SemiBin: Write a log file
* concatenate_fasta: support compression
* concatenate_fasta: slightly better error message when contig ID already
contains separator
* SemiBin: add `bin_short` as alias for `bin`

* Bugfix: using --no-recluster with multi_easy_bin (128)

* Add `SemiBin2` script
* Added naive ORF finder
* Add `--prodigal-output-faa` argument (113)
* Make command line arguments more flexible for --sequencing-type argument
* Argument checking is more exhaustive instead of exiting at first error
* Add `--quiet` argument
* Add `--compression` option
* Add `--tag-output` option
* Better `--help` (group required arguments separately)
* Make SemiBin.main.main2 callable with a list of arguments
* Add contig -> bin mapping table (123)

* Provide binning algorithm for assemblies from long read
* Add `--allow-missing-mmseqs2` flag to `check_install` subcommand
* Run Prodigal in multiple jobs without multiprocessing (106)
* Better command line arguments
* Better error checking