Check for new module params in new PRs of openzfs/zfs

[gmelikov]

So we can alert contributor that it should update documentation in openzfs-docs too.

• think about suppress this warning maybe via linking PR with another PR in docs
• warning on param removal? Work on "deprecation" method in docs

[richardelling]

NB, some module parameters are done with module_param(), others with module_param_call(), and more with ZFS_MODULE_PARAM()

[behlendorf]

The intent is to convert everything to ZFS_MODULE_PARAM and ZFS_MODULE_PARAM_CALL. This is currently the case for all of the common code, however some of the platform specific code may still use the platform specific interfaces.

[behlendorf]

The following new module options were added fir OpenZFS 2.0. They're all described in the man pages but not yet added to this documentation. I've opened PR #76 which which adds the new l2arc options, but none of the rest.

metaslab_unload_delay
metaslab_unload_delay_ms
vdev_file_logical_ashift
vdev_file_physical_ashift
zfetch_max_idistance
zfs_allow_redacted_dataset_mount
zfs_arc_eviction_pct
zfs_arc_shrinker_limit
zfs_fallocate_reserve_percent
zfs_history_output_max
zfs_initialize_chunk_size
zfs_keep_log_spacemaps_at_export
zfs_livelist_condense_new_alloc
zfs_livelist_condense_sync_cancel
zfs_livelist_condense_sync_pause
zfs_livelist_condense_zthr_cancel
zfs_livelist_condense_zthr_pause
zfs_livelist_max_entries
zfs_livelist_min_percent_shared
zfs_max_async_dedup_frees
zfs_max_log_walking
zfs_max_logsm_summary_length
zfs_max_nvlist_src_size
zfs_metaslab_max_size_cache_sec
zfs_metaslab_mem_limit
zfs_min_metaslabs_to_flush
zfs_rebuild_max_segment
zfs_recv_queue_ff
zfs_recv_write_batch_size
zfs_send_no_prefetch_queue_ff
zfs_send_no_prefetch_queue_length
zfs_send_queue_ff
zfs_unflushed_log_block_max
zfs_unflushed_log_block_min
zfs_unflushed_log_block_pct
zfs_unflushed_max_mem_amt
zfs_unflushed_max_mem_ppm
zfs_vdev_default_ms_shift
zfs_vdev_max_auto_ashift
zfs_vdev_min_auto_ashift
zfs_vdev_rebuild_max_active
zfs_vdev_rebuild_min_active
zfs_zevent_retain_expire_secs
zfs_zevent_retain_max