Sets 'standard' graphic properties
CL_g_stdaxes(a,colg,ft,fl,fg)
Sets some commonly used graphic properties: grid (present), subticks, size of texts, box ("on").
The subticks values are recomputed as the default values don't always seem well chosen.
(optional) Handle of axes. Default is current axes (gca()).
(optional) Color index of grid. Default is 0 (black).
(optional) Title size. By default: proportionnal to figure size.
(optional) Size of x-axis and y-axis labels. By default: proportionnal to figure size.
(optional) Size of text (font_size). By default: proportionnal to figure size.
CNES - DCT/SB (AL)