Remove hardcoded paths

[pmav99]

There are hardcoded paths:

$ ag 'home\/tomsail'
mesh_v0.1.py
55:    wind = glob.glob("/home/tomsail/Documents/work/python/pyPoseidon/Tutorial/data/era5_202307_uvp.nc")
62:    fdem = "/home/tomsail/Documents/work/python/pyPoseidon/Tutorial/data/ETOPO_0.03.nc"

mesh_v0.py
56:    wind = glob.glob("/home/tomsail/Documents/work/python/pyPoseidon/Tutorial/data/era5_202307_uvp.nc")
63:    fdem = "/home/tomsail/Documents/work/python/pyPoseidon/Tutorial/data/ETOPO_0.03.nc"

[tomsail]

I don't need wind anymore to generate meshes
The only hardcoded paths left are :

1. gshhs_folder = "../coastlines/out/"
2. fdem = "ETOPO_0.03.nc"

1 implies the coastlines is in the same folder as seareport_meshes
2 implies the bathy needs to be in seareport_meshes (I personally create symbolic links)