(prototype) multiple elements on the same line #133
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When a note or signal is indented with '=' it is shown on the same height as
the latest note or signal without indentation.
This is just a PoC implementation of #130. The formatting is mucked up and the
logic is a bit hard to read. If we decide this is a useful feature we probably
want to make 'lines' (collections of notes/signals that are on the same line)
a first-class citizen.
Would love to hear what you think!