Refactor fact_state

[mfachal]

Linked to #601

[juanbono]

can you move the StateDiff and the ExecutionResourcesManager to different files to avoid having a structs:: prefix? Or move them to state/mod.rs so we can import them directly from state

[codecov-commenter]

Codecov Report

Merging #603 (9bb3ff5) into main (e42da3d) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main     #603   +/-   ##
=======================================
  Coverage   89.99%   89.99%           
=======================================
  Files          50       49    -1     
  Lines       10043    10043           
=======================================
  Hits         9038     9038           
  Misses       1005     1005           

Impacted Files	Coverage Δ
.../business_logic/execution/execution_entry_point.rs	96.83% <ø> (ø)
src/business_logic/state/cached_state.rs	93.27% <ø> (ø)
src/business_logic/state/in_memory_state_reader.rs	91.11% <ø> (ø)
src/business_logic/transaction/fee.rs	98.76% <ø> (ø)
...ness_logic/transaction/objects/internal_declare.rs	98.73% <ø> (ø)
...iness_logic/transaction/objects/internal_deploy.rs	98.63% <ø> (ø)
...gic/transaction/objects/internal_deploy_account.rs	97.86% <ø> (ø)
...ic/transaction/objects/internal_invoke_function.rs	98.94% <ø> (ø)
...usiness_logic/transaction/objects/v2/declare_v2.rs	84.71% <ø> (ø)
src/runner/mod.rs	80.09% <ø> (ø)
... and 7 more