Updated to new architecture. Added examples. Updated contributed exam…

…ples.

Updated interface design and examples.

Cleaned macros and defaulted to using floating point compensation

Fixed a bug in integer compensation equations

Updated license and formatting

Added a wait until the NVM copy was complete.

Fixed typo in standby duration macro

- Added chapter for Sensor data's units

- humidity_max value updated in "compensate_humidity" API integer version
- Removed changelog

Added selftest API based on CRC check

Linux compatibility issue fixed

Changed

 - Created the following user APIs which were previously static
  * bme280_parse_sensor_data
  * bme280_compensate_data