Google split

[armstrmi]

Description of Changes

• updated splitting algorithm to instead fill each request before making a new one
• included new benchmark test to check that speed of algorithm didn't consume too much time

Please check that the PR fulfills these requirements

• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)
• Add a changelog entry (for non-trivial bug fixes / features)
• CI passes

[cpheps]

This is fine but little Go shortcut [:index] is the same as [0:index] omitting the first value defaults to zero and omitting the last value defaults to the last index.

[djaglowski]

Log Files	Logs / Second	CPU Avg (%)	CPU Avg Δ (%)	Memory Avg (MB)	Memory Avg Δ (MB)
1	1000	1.9656678	+0.29327285	130.7865	-0.08351135
1	5000	5.965612	+0.068957806	137.25754	-0.9908447
1	10000	11.241477	-1.120678	143.79782	-3.5045776
1	50000	57.397747	-5.827301	179.75134	+4.8547974
1	100000	147.90382	+16.746399	236.19827	+1.6165161
10	100	2.1207376	+6.914139e-06	132.12904	-2.516693
10	500	7.6898756	+0.79309225	142.10237	+0.4636383
10	1000	13.379507	+0.5172796	144.48329	-3.776413
10	5000	66.00097	-1.8442001	175.45999	-0.9073334
10	10000	133.3317	-3.0996246	224.40019	-14.2105255

[djaglowski]

Log Files	Logs / Second	CPU Avg (%)	CPU Avg Δ (%)	Memory Avg (MB)	Memory Avg Δ (MB)
1	1000	1.7413743	+0.1205771	131.58014	+1.3775482
1	5000	6.034586	+0.120700836	136.092	-2.6373901
1	10000	11.827562	+0.896327	146.20312	+1.7652283
1	50000	63.847515	-1.3422966	177.15355	+0.8943939
1	100000	125.87989	+14.823784	253.5664	+38.837418
10	100	2.189656	-0.275944	134.58742	+2.0507812
10	500	8.034476	+1.18962	136.81479	-6.0476837
10	1000	13.603749	+0.58631897	145.84886	+0.3674469
10	5000	67.20832	-0.5163574	175.20905	-0.5882263
10	10000	139.68756	+2.128128	241.9332	+14.689926