Rename parameter names with the rule of other params

[tagomoris]

This change is to rename two buffer parameters:

• chunk_records_limit -> chunk_limit_records
• queue_length_limit -> queue_limit_length

These new names are named under the same rule with other parameters:

• chunk_limit_size
• total_limit_size

Once (in very early era in v0.14) these parameters were renamed from chunk_size_limit and total_size_limit with consultation of some English native speakers, but some others were unchanged at that time.
But I think these should be named under the same rule for consistency.

These parameters are still undocumented, so I believe we can do it now, only right now.

[tagomoris]

@repeatedly How do you think about this change?

[repeatedly]

okay. Go merge.