• [fixed] SCD30: Fix buffer overflow when reading measurements that was
  introduced in 2.0.1.

• [fixed] Copy correct AUTHORS, CHANGELOG.md, LICENSE, and
  README.md files to target locations when running the release
  target of the driver's root Makefile.
• [removed] Remove the AUTHORS file from the driver and the
  embedded-common submodule, as it adds more noise than benefit.
  The contributors can be found in the git log.
• [changed] Avoid converting twice between endianness in
  scd30_read_measurement. (improves performance and portablity)
• [changed] Cleanup scd30 example

• [changed] Functions are now dedicated per sensor (e.g. scd30_probe()
  instead of scd_probe())
• [changed] Move the i2c init call out of probe() and into the example
• [added] Add scd30_read_serial() to read out the serial number
• [added] embedded-common: Add multi-bus support along with an example.
• [fixed] Fix compilation warnings when compiling the linux user space
  sample implementation with CONFIG_I2C_TYPE set to sw_i2c
• [changed] Split out default_config.inc from Makefile to configure paths
  and CFLAGS for the SCD30 driver
• [changed] Only one example with either hw_i2c or sw_i2c is build,
  depending on CONFIG_I2C_TYPE. Defaults to hw_i2c.
• [fixed] Fix clock stretching timeout that might occur when
  CONFIG_I2C_TYPE is set to sw_i2c

• Add processing delay on i2c writes
• Use stdint types (uint16_t instead of u16)

• Fix measurement readout
• Add self calibration
  • Add scd_get_automatic_self_calibration
  • Add scd_set_forced_recalibration
  • Add scd_enable_automatic_self_calibration
• Fix parameters on big-endian systems

Initial support for SCD30