Metacat

Refer to metacat.war deployments since those are now the default. https://projects.ecoinformatics.org/ecoinfo/issues/6082

An example python script that uses the python client to loop through a list of
files, read them from disk, and insert them into metacat.

Minor updates to python module ... default urls and license info

some quick additions and fixes to the python metacat readme

Initial import of prototype python client library to interact with metacat