Add Changelog

CHANGELOG.md

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+# Changelog
+
+## v3.0.1
+
+- Change configuration options from _CONFIG_ to _OPT
+- Apply code style settings with Artistic style options
+- Update docs
+
+## v3.0.0
+
+- Break compatibility vs `2.0.0`
+- New name of library is now LwOW - Lightweight onewire
+- Added `_ex` functions to read/write bytes or bits
+- Added drivers features as set of callback functions with drv pointer
+- Rename private functions to `prv_` prefix
+
+## v2.0.0
+
+- LL drivers are now passed as custom structure to allow multiple blocks as separate drivers
+- Added first sphinx documentation
+- Updated examples
+
+## v1.2.0
+
+- Automatically set result to OK when search function finds at least 1 connected device
+- Upgrade examples to CMSIS OS V2
+- Use pre-increment/decrement
+- Other C code style fixes
+
+## v1.1.0
+
+- Added assert for all API functions
+- Added new owPARERR enumerator for wrong parameters
+- Added `ow_deinit` function implementation
+
+## v1.0.0
+
+- Use separate ROM structure instead of byte array
+- Add option to search devices with command and save result directly to input array
+- Make all variables as local instead of using user pointers
+
+## v0.2.0
+
+- Removed `protect` parameter in API functions
+- Added `_raw` functions to provide non-thread-safe implementation for operating systems
+- Separate API functions with operating system protection
+
+## v0.1.0
+
+- Support for UART interface instead of software emulation on microcontroller or PC application
+- Support for operating systems (including non-real-time)
+- Added API driver for *DS18x20* temperature sensor