bench: Add separate benchmarks for execution only

[chfast]

For Advanced and Baseline builtin VMs this adds "execute" benchmarks which uses cached code analysis and pre-allocated execution state to much usage pattern in Ethereum clients (like Silkworm).

The existing EVMC-like execution has been renamed to "total" as it performs analysis and execution in each iteration.

[chfast]

Current Advanced vs Baseline comparison:

Comparing advanced (from o/master) to baseline (from o/master)
Benchmark                                                                               Time             CPU      Time Old      Time New       CPU Old       CPU New
--------------------------------------------------------------------------------------------------------------------------------------------------------------------
[advanced vs. baseline]/execute/main/blake2b_huff/empty_mean                         +0.3034         +0.3034            12            15            12            15
[advanced vs. baseline]/execute/main/blake2b_huff/2805nulls_mean                     +0.3054         +0.3054           253           330           253           330
[advanced vs. baseline]/execute/main/blake2b_huff/5610nulls_mean                     +0.3143         +0.3143           493           648           493           648
[advanced vs. baseline]/execute/main/blake2b_huff/8415nulls_mean                     +0.3126         +0.3126           722           948           722           948
[advanced vs. baseline]/execute/main/blake2b_huff/65536nulls_mean                    +0.3088         +0.3088          5614          7347          5614          7347
[advanced vs. baseline]/execute/main/blake2b_shifts/2805nulls_mean                   -0.0788         -0.0789          3409          3140          3409          3140
[advanced vs. baseline]/execute/main/blake2b_shifts/5610nulls_mean                   -0.0803         -0.0803          6810          6263          6810          6263
[advanced vs. baseline]/execute/main/blake2b_shifts/8415nulls_mean                   -0.0796         -0.0796         10202          9390         10202          9390
[advanced vs. baseline]/execute/main/blake2b_shifts/65536nulls_mean                  -0.0807         -0.0807         79038         72659         79037         72659
[advanced vs. baseline]/execute/main/sha1_divs/empty_mean                            +0.0768         +0.0768            50            54            50            54
[advanced vs. baseline]/execute/main/sha1_divs/1351_mean                             +0.1031         +0.1031          1047          1155          1047          1155
[advanced vs. baseline]/execute/main/sha1_divs/2737_mean                             +0.1050         +0.1050          2042          2256          2042          2256
[advanced vs. baseline]/execute/main/sha1_divs/5311_mean                             +0.1031         +0.1031          3989          4400          3989          4400
[advanced vs. baseline]/execute/main/sha1_divs/65536_mean                            +0.1060         +0.1060         48584         53734         48585         53734
[advanced vs. baseline]/execute/main/sha1_shifts/empty_mean                          +0.1377         +0.1377            29            33            29            33
[advanced vs. baseline]/execute/main/sha1_shifts/1351_mean                           +0.1464         +0.1465           612           702           612           702
[advanced vs. baseline]/execute/main/sha1_shifts/2737_mean                           +0.1512         +0.1512          1192          1372          1192          1372
[advanced vs. baseline]/execute/main/sha1_shifts/5311_mean                           +0.1484         +0.1484          2328          2673          2328          2673
[advanced vs. baseline]/execute/main/sha1_shifts/65536_mean                          +0.1419         +0.1419         28467         32507         28467         32508
[advanced vs. baseline]/execute/main/weierstrudel/0_mean                             +0.0423         +0.0423           161           168           161           168
[advanced vs. baseline]/execute/main/weierstrudel/1_mean                             +0.0390         +0.0390           363           377           363           377
[advanced vs. baseline]/execute/main/weierstrudel/3_mean                             +0.0408         +0.0408           567           590           567           590
[advanced vs. baseline]/execute/main/weierstrudel/9_mean                             +0.0433         +0.0433          1176          1227          1176          1227
[advanced vs. baseline]/execute/main/weierstrudel/14_mean                            +0.0401         +0.0401          1690          1758          1690          1758

[codecov]

Codecov Report

Merging #343 (3b5d214) into master (2ad2213) will not change coverage.
The diff coverage is n/a.

❗ Current head 3b5d214 differs from pull request most recent head f48bb09. Consider uploading reports for the commit f48bb09 to get more accurate results

@@           Coverage Diff           @@
##           master     #343   +/-   ##
=======================================
  Coverage   99.78%   99.78%           
=======================================
  Files          29       29           
  Lines        4133     4133           
=======================================
  Hits         4124     4124           
  Misses          9        9           

Flag	Coverage Δ
consensus	91.09% <ø> (ø)
unittests	99.78% <ø> (ø)

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