Ndexutil

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* `tqdm <https://pypi.org/project/tqdm>`__ and `ijson <https://pypi.org/project/ijson>`__ are now required packages

* Added ``--indexlevel, --showcase, --visibility,`` and ``--destnetworkset`` to
**ndexmisctools.py** *copynetwork* command to allow caller to set copied
networks accessibility and to add copied network to a networkset. This command
also stores the original NDEx network UUID in ``__copynewtork_orig_ndex_uuid`` network
attribute

* Added new command to **ndexmisctools.py** named *uploadnetwork* that lets caller upload
networks to NDEx

* Added following methods to **ndexutil/ndex.py**:
``get_network_summary(), get_nice_cx_from_server(),
set_index_and_showcase(), save_network_to_ndex()``

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* Fixed bug where ``--styleuuid`` was failing to update network in
**ndexmisctools.py** *styleupdate* command

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* Added Cytoscape layouts to **ndexmisctools.py** *tsvloader* via ``--layout`` flag

* Passing ``-`` for layout to **ndexmisctools.py** *cytoscapelayout* will run ``force-directed-cl``
layout in Cytoscape

* **ndexmisctools.py** *cytoscapelayout* by default updates only the layout aspect
on network in NDEx. This can be changed to perform a full network update with
new ``--updatefullnetwork`` flag

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* Added ``--layout`` flag to **ndexmisctools.py** *tsvloader* command to enable layouts
to be applied to network generated by loader

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* Added new command to **ndexmisctools.py** named *networkxlayout* that lets caller apply networkx layouts to network on NDEx

* Added new command to **ndexmisctools.py** named *cytoscapelayout* that lets caller apply Cytoscape layouts to network on NDEx

* Added new command to **ndexmisctools.py** named *featurednetworkreport* that generates a report about featured networks on NDEx

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* Added new command to **ndexmisctools.py** named *addnodeattrib* that lets caller add an attribute to all nodes in a network

* Added new command to **ndexmisctools.py** named *removenodeattrib* that lets caller remove an attribute from all nodes in a network