SequenceDesign simulations don't work for small width/ offset

[ReneSkukies]

Given the simulation in the tutorial with an SR_ complex simulation() doesn't work for small width/ offset combinations. See the code below for an example which doesn't work.

It seems it's more dependent on the offset than the width, as width = 5; offset = 10 works, but width = 10; offset = 5 does not (width = 40; offset = 5 works again however).

I am not sure if this is intended behaviour, or more a result of how the SequenceDesign is implemented (it's likely the latter), but there should be at least a @assert at one point.

Done with PR #112

using UnfoldSim, Random

sfreq = 100
width = 5
offset = 5
n_trials = 10

p1 = LinearModelComponent(;
        basis=p100(; sfreq=sfreq),
        formula=@formula(0 ~ 1),
        β=[5]
    )

    n1 = LinearModelComponent(;
        basis=n170(; sfreq=sfreq),
        formula=@formula(0 ~ 1),
        β=[5],
    )

    p3 = LinearModelComponent(;
        basis=p300(; sfreq=sfreq),
        formula=@formula(0 ~ 1 + condition),
        β=[7, 2],
    )

    resp = LinearModelComponent(;
        basis=UnfoldSim.hanning(Int(0.5 * sfreq)), # sfreq = 100 for the other bases
        formula=@formula(0 ~ 1),
        β=[6],
        offset=-10,
    )

    components = Dict('S' => [p1, n1, p3], 'R' => [resp])

    # Design
    cond_dict = Dict(:condition => ["one", "two"])
    design = SingleSubjectDesign(conditions=cond_dict)
    design = SequenceDesign(design, "SR_")
    design = RepeatDesign(design, n_trials) # number of trials will be n_trials * 2

    # Simulate
    data, evts = simulate(
        MersenneTwister(1),
        design,
        components,
        UniformOnset(offset=offset, width=width),
        PinkNoise(; noiselevel=5),
    )