Add large sklearn benchmark

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(benchmark 4537034165 / attempt 1) Base results / Our results / Change	Model	Size	Dump Time	Load Time
sklearn rf 20M	20.8 MiB / 3.0 MiB / 6.87 x	0.03 s / 0.04 s / 1.37 x	0.03 s / 0.03 s / 0.96 x
sklearn rf 20M lzma	6.5 MiB / 2.0 MiB / 3.25 x	11.57 s / 1.11 s / 0.10 x	0.56 s / 0.19 s / 0.33 x
sklearn rf 200M	212.3 MiB / 30.6 MiB / 6.94 x	0.22 s / 0.34 s / 1.53 x	0.27 s / 0.37 s / 1.34 x
sklearn rf 200M lzma	47.5 MiB / 14.6 MiB / 3.25 x	93.98 s / 17.47 s / 0.19 x	4.32 s / 1.45 s / 0.34 x
sklearn rf 1G	1157.5 MiB / 166.8 MiB / 6.94 x	1.30 s / 1.65 s / 1.27 x	1.51 s / 1.83 s / 1.21 x
sklearn rf 1G lzma	257.1 MiB / 98.1 MiB / 2.62 x	475.00 s / 101.80 s / 0.21 x	23.36 s / 8.74 s / 0.37 x
sklearn gb 2M	2.2 MiB / 1.1 MiB / 2.08 x	0.03 s / 0.24 s / 8.12 x	0.07 s / 0.16 s / 2.39 x
sklearn gb 2M lzma	0.6 MiB / 0.2 MiB / 3.82 x	0.91 s / 0.46 s / 0.50 x	0.09 s / 0.15 s / 1.65 x
lgbm gbdt 2M	2.6 MiB / 1.0 MiB / 2.78 x	0.09 s / 0.25 s / 2.78 x	0.01 s / 0.15 s / 12.14 x
lgbm gbdt 2M lzma	0.9 MiB / 0.5 MiB / 1.90 x	1.31 s / 0.51 s / 0.39 x	0.08 s / 0.22 s / 2.73 x
lgbm gbdt 5M	5.3 MiB / 1.9 MiB / 2.81 x	0.18 s / 0.51 s / 2.82 x	0.03 s / 0.32 s / 12.54 x
lgbm gbdt 5M lzma	1.7 MiB / 0.8 MiB / 1.96 x	3.12 s / 1.07 s / 0.34 x	0.15 s / 0.38 s / 2.55 x
lgbm gbdt 20M	22.7 MiB / 7.6 MiB / 3.00 x	0.72 s / 2.11 s / 2.95 x	0.11 s / 1.32 s / 11.83 x
lgbm gbdt 20M lzma	6.3 MiB / 3.0 MiB / 2.09 x	16.68 s / 4.86 s / 0.29 x	0.59 s / 1.54 s / 2.61 x
lgbm gbdt 100M	101.1 MiB / 33.0 MiB / 3.06 x	3.23 s / 9.39 s / 2.91 x	0.53 s / 116.98 s / 219.18 x
lgbm gbdt 100M lzma	25.6 MiB / 10.6 MiB / 2.41 x	83.14 s / 23.69 s / 0.28 x	2.44 s / 98.06 s / 40.16 x
lgbm rf 10M	10.9 MiB / 3.2 MiB / 3.46 x	0.36 s / 0.69 s / 1.92 x	0.04 s / 0.56 s / 12.54 x
lgbm rf 10M lzma	0.7 MiB / 0.4 MiB / 1.85 x	1.87 s / 0.95 s / 0.51 x	0.12 s / 0.58 s / 4.84 x