fine tune waveform and ook again

[zxkmm]

• add padding in OOK app's waveform to display correct data (start with low level and end with low level), won't impact actual wf that been sent
• my previous waveform tune edited analog wf's logic, no need, so reverted.
• now: for digital wf, low level is on the bottom and high level is on top. for analog waveform, greater number is on higher and lower number is on lower.

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1527 SymField is broken, but it's not from all of my changes;
it's from the refactor SymField PR by others.
hence i don't understand how it works, i can't fix it.

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clang-format keeps saying syntex err, moving define to the top doesn't help and i don't want to use const var to waste ram.

feel free to submit change-request if you don't like, and i'll use const var instead.

[gullradriel]

Looks good to me.
May solve #2336