use drawtol as parameter for performance_profile()

[lrsantos11]

I wish to consider a tolerance, namely, drawtol::Float64, for setting two solvers results as draw.
For instance, if the tolerance is 5%, a solver A is draw with a solver B, whenever the results have relative distance of 5%.
The following function in matlab does that

function PerformanceProfile(PP)

draw = 1.05; 

[np,na] = size(PP)

colors  = {'k','k','k','k','k','k'};
lines   = {'-','-','-','-','-','-'};
markers = {'none','o','+','*','d','x'};

minP = min(PP');

for i = 1:np
    if ( minP(i) ~= isnan(PP) )
        PP(i,:) = PP(i,:)/minP(i);
    end
end

maxPP = max(max(PP));

PP(find(isnan(PP))) = 2 * maxPP;

clf;

for i = 1:na
    x = sort(PP(:,i));
    y = [1:np]'/np;
    
    for j = 1:np
        if ( x(j) <= draw )
            x(j) = 1;
        else
            break
        end
    end
    
    n1 = histcounts(x,[1 1]);
    
    if ( n1 == 0 )
        x = [1 ; x];
        y = [0 ; y];
    else  
        x([1:n1-1]) = [];
        y([1:n1-1]) = [];
    end
    
    x = [x ; 2 * maxPP];
    y = [y ; y(length(y))];
    
   
    [xb,yb] = stairs(x,y);
    p = plot(xb,yb); 
    p.LineWidth = 2;
    p.Color     = colors{i};
    p.LineStyle = lines{i};
    p.Marker    = markers{i};
    
    hold on   
end