Fix storage of tags in MMG5_swap23

[coprigent]

This update fixes the way tags are applied to newly created tetras in MMG5_swap23. Several calls of MMG3D_get_shellEdgeTag are added in order to provide complete data to new tetras. These calls must be performed before the call of memcpy function since this call overwrites data about the initial tetra.
This update is motivated by the need to improve the behaviour of parMmg continuous integration tests.

[codecov]

Codecov Report

Attention: Patch coverage is 25.00000% with 3 lines in your changes missing coverage. Please review.

Project coverage is 50.44%. Comparing base (f6b3408) to head (d97c353).
Report is 8 commits behind head on develop.

Files with missing lines	Patch %	Lines
src/mmg3d/swap_3d.c	0.00%	2 Missing ⚠️
src/mmg3d/chkmsh_3d.c	50.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #283      +/-   ##
===========================================
- Coverage    50.44%   50.44%   -0.01%     
===========================================
  Files          177      177              
  Lines        47236    47238       +2     
  Branches     10271    10271              
===========================================
  Hits         23830    23830              
- Misses       15674    15676       +2     
  Partials      7732     7732              

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