Remove printf from ordering heuristics

[filikat]

• Define a macro HIGHS_ORDERING_PRINT that does nothing in release, and uses printf to print a message in debug.
• Replace all instances of printf in metis, amd and rcm with the new macro.
• The word "printf" now does not appear anywhere in the folders extern/metis, extern/amd, extern/rcm.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 80.28%. Comparing base (48487c6) to head (bec3258).
⚠️ Report is 18 commits behind head on latest.

Additional details and impacted files

@@           Coverage Diff           @@
##           latest    #2835   +/-   ##
=======================================
  Coverage   80.27%   80.28%           
=======================================
  Files         348      348           
  Lines       86212    86212           
=======================================
+ Hits        69210    69211    +1     
+ Misses      17002    17001    -1     

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