move `configure_storage` tasklist into separate `tasks` folder.

geant/gap_ansible/playbooks/l3_core_service.yaml

geant/gap_ansible/playbooks/manage_bgp_peers.yaml

geant/gap_ansible/playbooks/manage_sbp.yaml

geant/gap_ansible/playbooks/validate_prefix_list.yaml

geant/gap_ansible/playbooks/vrf_update.yaml

...ap_ansible/roles/base_config/tasks/configure_storage.yaml

.../gap_ansible/roles/edge_port/tasks/configure_storage.yaml

...ap_ansible/roles/ibgp_update/tasks/configure_storage.yaml

geant/gap_ansible/roles/iptrunk/tasks/configure_storage.yaml

...ible/roles/iptrunk_migration/tasks/configure_storage.yaml

..._ansible/roles/iptrunk_twamp/tasks/configure_storage.yaml

...gap_ansible/roles/l2circuits/tasks/configure_storage.yaml

...nsible/roles/promote_p_to_pe/tasks/configure_storage.yaml

geant/gap_ansible/roles/sdp/tasks/configure_storage.yaml

geant/gap_ansible/tasks/configure_storage.yaml