[RM-8435] [parameters checker] add a dependance for asym Lya parameters

Created on 2023-10-23 14:56:03 by Didier Vibert. % Done: 50

all the parameters from @LineModelSolve.linemodel.lyafit@ section are necessary only if @LineModelSolve.linemodel.igmfit@ is False (and unused if True)

same for parameters @LineModelSolve.linemodel.lyaforcefit@ and @LineModelSolve.linemodel.lyaforcedisablefit@

note: the section lyafit is read by the instanciation of any fitter (see CAbstractfitter constructor code). We must add a test on the igmfit param to read or not this section (and set the corresponding members to NAN if we don't read).

BTW, in the @CAbstractFitter()@ constructor, these parameters should also be read if the method is @"LineMeasSolve"@. This is currently missing, and the linemeas solver is thus currently running through the Lya asymmetric profile fitting using the hardcoded default values for the parameters ranges and steps...
Note that the default parameter currently used for linemeas is igmfit false (for all parameters, notably the one delivered to PFS)

Thus we need to add the lyafit section in @LineMeasSolve@ with same dependance on igmfit.