CHARLIE 0.11.0

@kelly-sovacool

Major updates to convert CHARLIE from a biowulf-specific to a platform-agnostic pipeline (#102, @kelly-sovacool):
- All rules now use containers instead of envmodules.
- Default config and cluster config files are provided for use on biowulf and FRCE.
- New entry TEMPDIR in the config file sets the temporary directory location for rules that require transient storage.
- New --singcache argument to provide a singularity cache dir location. The singularity cache dir is automatically set inside /data/$USER/ or $WORKDIR/ if --singcache is not provided.
Minor documentation improvements. (#114, @kelly-sovacool)

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