feat(hints): add NewHint#34

[MegaRedHand]

Closes: #974

Description

This PR adds the missing hint NewHint#34, now known as SHA256_MAIN_ARBITRARY_INPUT_LENGTH. Also renames SHA256_MAIN to SHA256_MAIN_CONSTANT_INPUT_LENGTH. As part of the changes, extract helper function get_constant_from_var_name used for retrieving a constant from constants HashMap.

[github-actions]

Benchmark Results for unmodified programs 🚀

Command	Mean [s]	Min [s]	Max [s]	Relative
base blake2s_integration_benchmark	3.475 ± 0.042	3.422	3.552	1.00 ± 0.02
head blake2s_integration_benchmark	3.471 ± 0.046	3.411	3.559	1.00

Command	Mean [s]	Min [s]	Max [s]	Relative
base compare_arrays_200000	4.121 ± 0.053	4.063	4.245	1.01 ± 0.02
head compare_arrays_200000	4.096 ± 0.047	4.027	4.193	1.00

Command	Mean [s]	Min [s]	Max [s]	Relative
base dict_integration_benchmark	3.148 ± 0.021	3.115	3.183	1.00
head dict_integration_benchmark	3.151 ± 0.038	3.110	3.233	1.00 ± 0.01

Command	Mean [s]	Min [s]	Max [s]	Relative
base factorial_multirun	5.075 ± 0.059	4.996	5.222	1.00 ± 0.02
head factorial_multirun	5.062 ± 0.072	4.989	5.173	1.00

Command	Mean [s]	Min [s]	Max [s]	Relative
base fibonacci_1000_multirun	4.068 ± 0.111	3.993	4.372	1.02 ± 0.03
head fibonacci_1000_multirun	4.002 ± 0.047	3.944	4.122	1.00

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
base field_arithmetic_get_square_benchmark	150.6 ± 5.6	143.6	163.5	1.01 ± 0.05
head field_arithmetic_get_square_benchmark	149.4 ± 5.7	142.1	160.4	1.00

Command	Mean [s]	Min [s]	Max [s]	Relative
base integration_builtins	4.025 ± 0.046	3.983	4.126	1.00 ± 0.01
head integration_builtins	4.005 ± 0.028	3.963	4.049	1.00

Command	Mean [s]	Min [s]	Max [s]	Relative
base keccak_integration_benchmark	3.773 ± 0.042	3.732	3.851	1.00 ± 0.02
head keccak_integration_benchmark	3.767 ± 0.064	3.699	3.930	1.00

Command	Mean [s]	Min [s]	Max [s]	Relative
base linear_search	4.233 ± 0.041	4.190	4.342	1.00
head linear_search	4.241 ± 0.037	4.193	4.316	1.00 ± 0.01

Command	Mean [s]	Min [s]	Max [s]	Relative
base math_cmp_and_pow_integration_benchmark	3.478 ± 0.026	3.442	3.515	1.00
head math_cmp_and_pow_integration_benchmark	3.507 ± 0.051	3.408	3.586	1.01 ± 0.02

Command	Mean [s]	Min [s]	Max [s]	Relative
base math_integration_benchmark	3.217 ± 0.034	3.163	3.290	1.00
head math_integration_benchmark	3.234 ± 0.045	3.164	3.293	1.01 ± 0.02

Command	Mean [s]	Min [s]	Max [s]	Relative
base memory_integration_benchmark	2.873 ± 0.045	2.827	2.992	1.00 ± 0.02
head memory_integration_benchmark	2.868 ± 0.030	2.826	2.927	1.00

Command	Mean [s]	Min [s]	Max [s]	Relative
base operations_with_data_structures_benchmarks	2.791 ± 0.036	2.723	2.863	1.02 ± 0.02
head operations_with_data_structures_benchmarks	2.734 ± 0.036	2.670	2.790	1.00

Command	Mean [s]	Min [s]	Max [s]	Relative
base pedersen	1.001 ± 0.009	0.982	1.014	1.00 ± 0.01
head pedersen	0.999 ± 0.011	0.983	1.018	1.00

Command	Mean [s]	Min [s]	Max [s]	Relative
base poseidon_integration_benchmark	1.790 ± 0.044	1.736	1.847	1.00
head poseidon_integration_benchmark	1.797 ± 0.040	1.746	1.895	1.00 ± 0.03

Command	Mean [s]	Min [s]	Max [s]	Relative
base secp_integration_benchmark	3.231 ± 0.042	3.195	3.318	1.00
head secp_integration_benchmark	3.261 ± 0.050	3.213	3.377	1.01 ± 0.02

Command	Mean [s]	Min [s]	Max [s]	Relative
base set_integration_benchmark	2.529 ± 0.031	2.493	2.581	1.00
head set_integration_benchmark	2.562 ± 0.082	2.512	2.786	1.01 ± 0.03

Command	Mean [s]	Min [s]	Max [s]	Relative
base uint256_integration_benchmark	4.602 ± 0.089	4.478	4.736	1.00
head uint256_integration_benchmark	4.607 ± 0.061	4.518	4.708	1.00 ± 0.02

[codecov]

Codecov Report

Merging #1091 (3f911e3) into main (a733298) will increase coverage by 0.00%.
The diff coverage is 99.00%.

@@           Coverage Diff            @@
##             main    #1091    +/-   ##
========================================
  Coverage   98.11%   98.11%            
========================================
  Files          84       84            
  Lines       34231    34419   +188     
========================================
+ Hits        33585    33771   +186     
- Misses        646      648     +2     

Impacted Files	Coverage Δ
...t_processor/builtin_hint_processor/sha256_utils.rs	99.32% <98.88%> (-0.68%)	⬇️
...int_processor/builtin_hint_processor_definition.rs	99.05% <100.00%> (+0.01%)	⬆️
...int_processor/builtin_hint_processor/hint_utils.rs	94.87% <100.00%> (+0.27%)	⬆️
...c/hint_processor/builtin_hint_processor/uint384.rs	97.80% <100.00%> (-0.02%)	⬇️

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