Peak wave dir

Add output of peak wave directions to TOMAWAC. here the peak wave direction is defined as the average wave direction at the spectral peak frequency.

assigned to @thierry.fouquet

requested review from @boris.basic

added 46 commits

• 1febade3...2a51ca86 - 42 commits from branch main
• d2aba7c4 - adding peak frequency output to tomawac
• 113fa118 - bugfix maxvar
• ca2dfd80 - adding test case
• 70761afa - adding news for peak wave directions

Compare with previous version

added 2 commits

• 15e0293f - small cleanup
• ffb76290 - undo setting to unicode (no idea why it was unicode anyway)

Compare with previous version

added 11 commits

• ffb76290...0ba4d361 - 5 commits from branch main
• ddb6dfdb - adding peak frequency output to tomawac
• e229affc - bugfix maxvar
• 21400456 - adding test case
• 017419d4 - adding news for peak wave directions
• 812a3ad8 - small cleanup
• 32d312c8 - undo setting to unicode (no idea why it was unicode anyway)

Compare with previous version

merged

mentioned in commit 11bb8422