chore(scalastyle): disable space-around-operator checks (#4567)

chore(scalastyle): allow sx_lowerCamelCase naming for pipeline signals

Names like `s1SomeSignal` are hard to read and are not conducive to filtering signals when looking at waveforms

So I guess all

chore(scalastyle): allow sx_lowerCamelCase naming for pipeline signals

Names like `s1SomeSignal` are hard to read and are not conducive to filtering signals when looking at waveforms

So I guess allowing s1_someSignal is better

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chore(scalastyle): allow different copyrights

chore(scalastyle): complete rewrite configuration

this follows code spec on yuque on best effort and hopefully make use of IDE warning

first commit