HF ounfpart + NCO switch + DB1 coeff (#14)

Merging Hotfixes branch HF_ounfpart into the WW3 master. 

* Bugfix in ww3_ounf.ftn: NBIPART check against NOSWLL was not accouting for zeroth wind partition. See Issue #2.
* Updating link.wcoss_phase2 for grib compile, removing !$ lines in ww3_uprstr that broke compilation of codes with OMPH OMPG switch flags, added new global wave model switch. Added option for writing to fixed netcdf gridded output file when using NCO switch (the issue will be fixed more adequately in v7 following Issue #8).
* DB1 depth-breaking_bugfix: added proper scaling coefficients for radian freq. [radHz]. See issue #7.

Merge will lead to v6.07.1, tag and release will be updated accordingly.

master: Updated version number to 6.07

Former-commit-id: 3d5bbb90608186acd14c492c05749478ed417e1d