Fix BIT value display in dolt sql and dolt diff -r sql

[elianddb]

BIT(n) values were printed as raw bytes, producing empty or corrupt SQL patches visually. BIT was also missing from the --binary-as-hex display path.

• --binary-as-hex now supports BIT for local and sql-server connections
• dolt sql -q now defaults to hex display for binary values when attached to a terminal (i.e., mysql client)
  Fix dolt diff -r sql doesn't show values for BIT(n) types #10132
  Blocked by Advertise binary charset for BIT result columns go-mysql-server#3625

Note: The driver does not report declared BIT widths: display paths size hex output from the value bytes the server already pads to ceil(bits/8).

[coffeegoddd]

@elianddb DOLT

read_tests	from_latency	to_latency	percent_change
covering_index_scan	2.3	2.3	0.0
groupby_scan	144.97	147.61	1.82
index_join	1.93	1.93	0.0
index_join_scan	1.32	1.32	0.0
index_scan	215.44	219.36	1.82
oltp_point_select	0.26	0.25	-3.85
oltp_read_only	5.0	5.0	0.0
select_random_points	0.51	0.51	0.0
select_random_ranges	0.65	0.65	0.0
table_scan	204.11	207.82	1.82
types_table_scan	475.79	484.44	1.82

write_tests	from_latency	to_latency	percent_change
oltp_delete_insert	6.09	6.21	1.97
oltp_insert	3.13	3.13	0.0
oltp_read_write	11.24	11.24	0.0
oltp_update_index	3.3	3.3	0.0
oltp_update_non_index	3.02	2.97	-1.66
oltp_write_only	6.32	6.21	-1.74
types_delete_insert	6.79	6.79	0.0

[coffeegoddd]

@elianddb DOLT

comparing_percentages
100.000000 to 100.000000

version	result	total
d4dc96b	ok	5937471

version	total_tests
d4dc96b	5937471

correctness_percentage
100.0

[coffeegoddd]

@elianddb DOLT

test_name	from_latency_p95	to_latency_p95	percent_change
tpcc-scale-factor-1	45.79	45.79	0.0

test_name	from_server_name	from_server_version	from_tps	to_server_name	to_server_version	to_tps	percent_change
tpcc-scale-factor-1	dolt	16fd54b	52.34	dolt	9430341	52.1	-0.46

[coffeegoddd]

@elianddb DOLT

comparing_percentages
100.000000 to 100.000000

version	result	total
9430341	ok	5937471

version	total_tests
9430341	5937471

correctness_percentage
100.0