a library to access the i-doit JSON RPC API

Changes for v0.3.1

• fix: install idoit-object
• fix: idoit-object: make option --version (and -V) work
• feat: idoit-reports: when printing CSV, sort columns alphabetically
• feat: add function WebService::IdoitAPI:😮bject->get_data()
• feat: idoit-object: access get_data() with option --get-data