Add a --version argument

Expected Behavior

colabfold_batch --version, colabfold_search --version, colabfold_split_msas --version should all return the version of the release.

Current Behavior

No version returned, no --version argument

Steps to Reproduce (for bugs)

colabfold_search --version

ColabFold Output (for bugs)

$ ./colabfold_search --version usage: colabfold_search [-h] [-s S] [--db1 DB1] [--db2 DB2] [--db3 DB3] [--use-env {0,1}] [--use-templates {0,1}] [--filter {0,1}] [--mmseqs MMSEQS] [--expand-eval EXPAND_EVAL] [--align-eval ALIGN_EVAL] [--diff DIFF] [--qsc QSC] [--max-accept MAX_ACCEPT] [--db-load-mode DB_LOAD_MODE] [--threads THREADS] query dbbase base colabfold_search: error: the following arguments are required: query, dbbase, base

Context

We try to make reproducible workflows. Version stamps are critical to this process.

Your Environment

HPC cluster, slurm
Various linux/unix

Start by locating the entry points for colabfold_batch, colabfold_search, and colabfold_split_msas and determine how the release version is defined. Verify that each command accepts --version and returns the release version without requiring its normal positional arguments.