updated spdx licensing and copyright & code style

[maurafortino]

What's included:

• (unify) Use SPDX for copyright and reuse. #339
• (unify) Update code style. #340

[codecov]

Codecov Report

Merging #343 (08556aa) into main (5f567e9) will not change coverage.
Report is 4 commits behind head on main.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #343   +/-   ##
=======================================
  Coverage   60.33%   60.33%           
=======================================
  Files          18       18           
  Lines        1533     1533           
=======================================
  Hits          925      925           
  Misses        594      594           
  Partials       14       14           

Flag	Coverage Δ
unittests	60.33% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files Changed	Coverage Δ
WRPHandler.go	84.84% <ø> (ø)
ackDispatcher.go	96.00% <ø> (ø)
basculeLogging.go	20.93% <ø> (ø)
binOp.go	100.00% <ø> (ø)
checks.go	100.00% <ø> (ø)
control.go	0.00% <ø> (ø)
deviceAccess.go	100.00% <ø> (ø)
deviceStatus.go	96.20% <ø> (ø)
eventDispatcher.go	96.92% <ø> (ø)
main.go	0.00% <ø> (ø)
... and 8 more