AW3: Use more iterations in tetrahedral remeshing example

[MaelRL]

Summary of Changes

The default iteration number (1) is too few for the remeshing algorithm to produce something nice, given that we start from a rather nasty triangulation at the end of alpha wrap.

Release Management

• Affected package(s): Alpha_wrap_3
• Issue(s) solved (if any): -
• Feature/Small Feature (if any): -
• License and copyright ownership: no change