Add scicat_client to the datacatalog module.

The script is based off the scicat_client-0.1.0 anaconda environment.
Conda does not need to be activated to run, so the pmodule simple
symlinks the entrypoint to the module bin.

Programming/anaconda/2019.07/conda-env-defs/scicat_client/README.md

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+# scicat-client
+
+The scicat-client environment is used in the datacatalog module. Contact
+Spencer Bliven, Stephan Egli, or Leo Sala for more info.
+
+## Installing
+
+First, create the conda environment
+
+    conda env create -f scicat_client.yml
+
+Next, install scicat_client. Eventually this should be done automatically
+through conda, but for now it needs to be installed from source.
+
+    git clone git@github.com:paulscherrerinstitute/scicat_client.git
+    cd scicat_client
+    conda activate scicat_client-0.1.0
+    python setup.py install
+
+

Programming/anaconda/2019.07/conda-env-defs/scicat_client/scicat_client.yml

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+# Clean environment based on pure conda-forge packages
+name: scicat_client-0.1.0
+channels:
+  - conda-forge
+  - http://conda-pkg.intranet.psi.ch
+dependencies:
+  - python=3.8
+  - requests
+  # development tools
+  - conda-build
+  - black
+  - flake8
+  - mypy
+  - mypy_extensions
+  - typing_extensions
+  - tox
+  - tox-conda
+  - pytest