docs/config-params-guc-list is incomplete #369

Hi!

My colleagues and I was writing user-facing documentation, and we found out that docs/config-params-guc-list is incomplete. Many useful parameters are not documented.

List of parameters that referenced in docs, but not in guc-list:

• gp_cached_segworkers_threshold
• lock_timeout
• max_slot_wal_keep_size
• log_*

List of useful parameters with no mentioning in Cloudberry documentation:

• gp_add_column_inherits_table_setting
• gp_max_plan_size
• gp_max_slices
• gp_resource_group_memory_limit
• master_shared_buffers
• max_locks_per_transaction
• segment_shared_buffers

For some of them - are just Postgres GUCs, some - Cloudberry-specific.