Add indicator in the wave for current in wave data

[ABADY1000]

Hello Aliaksey, thank you very much for your tool, I have been using it since a while and it is quite useful.

But when I try to modify the wave, it is bothering trying to figure outt which time slice you are in, so I suggest to add an indicator in the wave that points to the position your cursour on.

for example:

{
    signal: [
        { name: "sig1",  wave: "0.1.10.10..1...01." },
        { name: "sig2",  wave: "1.0..1.01.1..0..1." },   // if the cursor is after the zero here, in the draw there is a highlight or some 
                                       ^                 // kind of indicator points this zero
        { name: "sig3",  wave: "0.1.0.1.0.1..1.0.." },
        { name: "sig4",  wave: "0..1..0.10.1.0.0.." }
    ]
}

[drom]

Great idea. Moving to the WaveDrom Editor project.