tol variable used for 2 purpose: line search stop and inner solver stop

[josephsalmon]

sparse-ho/sparse_ho/ho.py

Line 87 in 527316d

tol : float

In this line the tol variable is referenced as a criterion to stop the inner solver, though it is also used later on line 204:

sparse-ho/sparse_ho/ho.py

Line 204 in 527316d

if g_func <= g_func_old + C * tol + \

as a way to stop the line search. Both quantities are different, and may be introducing:
tol_ls and tol_inner_opt would be useful.
WDYT?