Move byte-operator lowering to util [depends-on: #7329]

[tautschnig]

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[codecov]

Codecov Report

Base: 78.28% // Head: 78.28% // Decreases project coverage by -0.00% ⚠️

Coverage data is based on head (c708326) compared to base (d7dd40a).
Patch coverage: 91.58% of modified lines in pull request are covered.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #7330      +/-   ##
===========================================
- Coverage    78.28%   78.28%   -0.01%     
===========================================
  Files         1642     1642              
  Lines       189995   190014      +19     
===========================================
+ Hits        148737   148750      +13     
- Misses       41258    41264       +6     

Impacted Files	Coverage Δ
src/solvers/flattening/boolbv_byte_extract.cpp	69.73% <ø> (ø)
src/solvers/flattening/boolbv_byte_update.cpp	100.00% <ø> (ø)
src/solvers/flattening/boolbv_equality.cpp	63.63% <ø> (ø)
src/solvers/flattening/boolbv_index.cpp	72.91% <ø> (ø)
src/solvers/smt2/smt2_conv.cpp	66.38% <ø> (ø)
...ncremental/smt2_incremental_decision_procedure.cpp	96.81% <ø> (ø)
src/util/byte_operators.h	92.72% <ø> (ø)
src/cprover/propagate.cpp	65.85% <16.66%> (-8.44%)	⬇️
src/util/lower_byte_operators.cpp	92.70% <95.50%> (ø)
src/util/byte_operators.cpp	93.10% <100.00%> (+3.10%)	⬆️
... and 1 more

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