Enforce code formatting via clang-format

.clang-format

.clang-format-ignore

.gitlab-ci.yml

arduino/devcomuino/devcomuino.h

arduino/devcomuino/devcomuino.ino

ci/Dockerfile

ci/run-clang-format.py

src/examples/Si7021_example.cpp

src/examples/chiller_example.cpp

src/examples/control_powersupply_example.cpp

src/examples/datasink_example.cpp

src/examples/devcomuino_example.cpp

src/examples/fluke_example.cpp

src/examples/ft232h_adc_example.cpp

src/examples/multimeter_example.cpp

src/examples/ntc_example.cpp

src/examples/pixel_scope_run.cpp

src/examples/scope_example.cpp

src/examples/sht85_example.cpp

src/examples/spam_powersupply.cpp