Optimize Mersenne31 Field

[nicole-graus]

Optimize Mersenne31 Field

Description

In this PR we improve the Mersenne31 field operations and add the extensions of degree 2 and 4.

Type of change

Please delete options that are not relevant.

• Optimization

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 90.03497% with 57 lines in your changes missing coverage. Please review.

Project coverage is 70.95%. Comparing base (9617e52) to head (b6165b3).

Files with missing lines	Patch %	Lines
math/src/field/fields/mersenne31/extensions.rs	88.04%	52 Missing ⚠️
math/src/unsigned_integer/element.rs	0.00%	5 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #921      +/-   ##
==========================================
+ Coverage   70.75%   70.95%   +0.19%     
==========================================
  Files         143      143              
  Lines       30985    31284     +299     
==========================================
+ Hits        21923    22197     +274     
- Misses       9062     9087      +25     

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