Add optimized diffing and three-way merge of indexed JSON Documents.

[nicktobey]

This PR adds some additional tests, but I plan on adding more tests around large documents before merging. Still, the implementation is ready for review.

This adds a new JSON diffing algorithm designed for IndexedJSONDocument. Because three way merge only operates on values read from a Dolt table, which are always returned as a IndexedJSONDocuemt, this should mean that the original implementation is no longer used.

[coffeegoddd]

@nicktobey DOLT

comparing_percentages
100.000000 to 100.000000

version	result	total
260f8bf	ok	5937457

version	total_tests
260f8bf	5937457

correctness_percentage
100.0

[coffeegoddd]

@nicktobey DOLT

comparing_percentages
100.000000 to 100.000000

version	result	total
ef0e252	ok	5937457

version	total_tests
ef0e252	5937457

correctness_percentage
100.0

[coffeegoddd]

@nicktobey DOLT

comparing_percentages
100.000000 to 100.000000

version	result	total
5e0990f	ok	5937457

version	total_tests
5e0990f	5937457

correctness_percentage
100.0

[coffeegoddd]

@coffeegoddd DOLT

comparing_percentages
100.000000 to 100.000000

version	result	total
1399c9f	ok	5937457

version	total_tests
1399c9f	5937457

correctness_percentage
100.0

[github-actions[bot]]

@coffeegoddd DOLT	test_name	detail	row_cnt	sorted	mysql_time	sql_mult	cli_mult
batching	LOAD DATA	10000	1	0.06	1.5
batching	batch sql	10000	1	0.08	1.88
batching	by line sql	10000	1	0.08	1.75
blob	1 blob	200000	1	0.94	3.76	3.66
blob	2 blobs	200000	1	0.93	4.3	4.17
blob	no blob	200000	1	0.97	2.29	1.96
col type	datetime	200000	1	0.84	2.99	2.8
col type	varchar	200000	1	0.71	3.54	3.21
config width	2 cols	200000	1	0.81	2.52	2.1
config width	32 cols	200000	1	1.9	2.01	2.47
config width	8 cols	200000	1	0.98	2.4	2.27
pk type	float	200000	1	0.95	2.16	1.82
pk type	int	200000	1	0.78	2.92	2.17
pk type	varchar	200000	1	1.5	1.76	1.59
row count	1.6mm	1600000	1	5.77	2.91	2.47
row count	400k	400000	1	1.5	2.77	2.3
row count	800k	800000	1	2.93	2.84	2.4
secondary index	four index	200000	1	3.65	1.35	1.05
secondary index	no secondary	200000	1	0.9	2.47	2.09
secondary index	one index	200000	1	1.14	2.43	2.11
secondary index	two index	200000	1	2	1.74	1.47
sorting	shuffled 1mm	1000000	0	5.3	2.77	2.46
sorting	sorted 1mm	1000000	1	5.28	2.77	2.47

[github-actions[bot]]

@coffeegoddd DOLT	name	detail	mean_mult
dolt_blame_basic	system table	1.25
dolt_blame_commit_filter	system table	3.34
dolt_commit_ancestors_commit_filter	system table	0.81
dolt_commits_commit_filter	system table	1.1
dolt_diff_log_join_from_commit	system table	2.09
dolt_diff_log_join_to_commit	system table	2.12
dolt_diff_table_from_commit_filter	system table	1.15
dolt_diff_table_to_commit_filter	system table	1.15
dolt_diffs_commit_filter	system table	0.93
dolt_history_commit_filter	system table	1.53
dolt_log_commit_filter	system table	1.1

[github-actions[bot]]

@coffeegoddd DOLT	name	add_cnt	delete_cnt	update_cnt	latency
adds_only	60000	0	0	0.71
adds_updates_deletes	60000	60000	60000	3.77
deletes_only	0	60000	0	1.87
updates_only	0	0	60000	2.41