Renamed the C++ implementation files to match the component folder naming:
- lsm6ds.h -> lsm6ds_base.h
- lsm6ds.cpp -> lsm6ds_base.cpp
Updated all includes:
- lsm6ds_base/lsm6ds_base.cpp: Updated self-include
- lsm6ds_i2c/lsm6ds_i2c.h: Updated to include lsm6ds_base.h
- lsm6ds_spi/lsm6ds_spi.h: Updated to include lsm6ds_base.h
Fixed test file:
- tests/lsm6ds_test.yaml: Updated sensor platforms to use lsm6ds_i2c and lsm6ds_spi
This ensures all files follow consistent naming conventions with the _base suffix.