naming convention in epidata test folder

[patricklnz]

Currently some unittest files are written in camel case and some are written in snake case. All unittest files in this folder should be named test_epidata_filename.py, where filename is the file to test from the memilio folder, mostly written in camel case. Example: test_epidata_getSimulationData.py instead of test_epidata_get_simulation_data.py

[dabele]

By python conventions, modules have lower case or snake case names, not CamelCase.

[patricklnz]

By python conventions, modules have lower case or snake case names, not CamelCase. Then this needs to be changed as well.

[patricklnz]

related to #108