Resolve "Update LBC chapter in reference doc"

Closes #18

See merge request !28

fix names of x,y coordinates fields of domcfg

See merge request !33

Update SETTE scripts to expect r4.2.0 input files now available from the sette_inputs site (including new AGRIF_DEMO inputs compatible with the previous commit)

AGRIF update following tests in IMMERSE realistic configurations

See merge request !32

Merge branch '8-explicit-use-of-ssh-in-hpg_djc-no-matter-linear-non-linear-free-surface' into 'main'

Fixes issue #8

Closes #8

See merge request !31

Resolve "remove tmask_h"

Closes #16

See merge request !30