Improvements to NEMO offloading scripts

[sergisiso]

• Enables ICE (not not icethd yet), this is used by BENCH and the ORCA2 in ENMASE
• Prevents (if type info is available) characters on offloaded regions
• Converges the NEMOv4 and NEMOv5 produced directives/clauses
• Prevents skipping parallelising loops if they are collapsed anyway

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.90%. Comparing base (80b372f) to head (a6739f6).
Report is 23 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3047      +/-   ##
==========================================
- Coverage   99.92%   99.90%   -0.02%     
==========================================
  Files         365      366       +1     
  Lines       51716    51766      +50     
==========================================
+ Hits        51675    51717      +42     
- Misses         41       49       +8     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.