function organizing and naming

[sformel]

I got thinking about consistency of our functions and the IPT. I'm partly influenced by the tidy philosophy.)

1. I propose we rename our current functions to organize them into families.
2. I propose we remove ipt from any function names (this is implicit in the module)
3. I propose we replace project with resource as that is what the IPT devs use. See the manual glossary for resource definition.

open_ipt_session --> session_open
create_new_ipt_project --> resource_create
refresh_ipt_project_files --> resource_refresh_files
refresh_ipt_project_metadata --> resource_refresh_metadata
change_publishing_org_ipt_project --> resource_change_publishing_org
make_public_ipt_project --> resource_make_public
publish_ipt_project --> resource_publish
register_ipt_project --> resource_register_with_GBIF
add_network_ipt_project --> resource_add_network
check_if_project_exists --> resource_exists