Initializing the repository for External Archive Data Access code, for ASDC
First version of the script to get data for a couple of objects in databases
Adicionada CLI e as opcoes basicas para input a partir de uma posicao no ceu (degrees)
Completed the CLI implementation. The user gives catalog, ra, dec and a radius.
Added a small test data set of +/- a dozen of sources.

+ Output columns (of interest) were added for each of the 3 catalogs;
+ a script and a csv table for tests;
* Minor workflow bugs were fixed.
The output (from conesearch) is now transformed to an Astropy-Table.
Added a new file to do the conesearch using PyVO.
New version of the script to query/retrieve data from VO DBs.

* ToDo: sort the output csv file columns accroding to the inputs (order) given;
* ToDO: test better the databases and error/exceptions handling
'ToDo' about sort the output table columns according to user input is done.
Updated the scripts to test the conesearch code.
Merge branch 'master' of https://github.com/chbrandt/eada