Map csv files to open contracting data standard.

To Do:

• grab the latest version of the json schema from https://github.com/open-contracting/standard/blob/master/standard/schema/release-schema.json
• start with a command line / python function that takes a csv file, the schema, and a map (define as you wish) as input and outputs ocds json
• provide an option to autogenerate the releaseID
• provide ability to take multiple csvs (may have different headings) e.g. two tender csvs and one award csv
• accept urls as well as files
• package as lib
• allow ocds format to be extended (extend the mapping)

Next steps:

• build a django app so that users can build their map graphically (nothing super fancy, just not command line)
• may put into validator app