Missing consistency in fact module naming

[mamoep]

Most fact modules are called _facts:

sds_block.hv_sds_block_chap_user_facts
sds_block.hv_sds_block_compute_node_facts
sds_block.hv_sds_block_port_facts
sds_block.hv_sds_block_volume_facts
sds_block.hv_sds_block_vps_facts
vsp.hv_gateway_subscription_facts
vsp.hv_hg_facts
vsp.hv_hur_facts
vsp.hv_iscsi_target_facts
vsp.hv_ldev_facts
vsp.hv_nvm_subsystems_facts
vsp.hv_paritygroup_facts
vsp.hv_shadow_image_pair_facts
vsp.hv_snapshot_facts
vsp.hv_storage_port_facts
vsp.hv_storagepool_facts
vsp.hv_storagesystem_facts
vsp.hv_system_facts
vsp.hv_troubleshooting_facts
vsp.hv_truecopy_facts

But some are called _fact:

sds_block.hv_sds_block_storage_system_fact
vsp.hv_gad_fact
vsp.hv_gateway_subscriber_fact
vsp.hv_uaig_token_fact

Please align the names for consistency.