chore: Add initial changelog

Signed-off-by: Rahix <rahix@rahix.de>

CHANGELOG.md

+# Changelog
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
+
+## [Unreleased]
+### Added
+- Support for the `bme680` environmental sensor.
+- Support for the `bhi160` sensor fusion.
+- `simple_menu` module for creating simple menus in Python.
+
+### Changed
+- Refactored BLE card10 service.
+- Improved BLE file-transfer.
+- Replaced dynamic attribute creation with static attributes.
+
+### Fixed
+- Fixed menu listing files starting with `.`.
+- Fixed `utime.set_time()` applying the timezone offset in the wrong direction.
+- Fixed the PMIC driver not releasing some locks properly.
+
+## [v1.3] - 2019-08-22 00:12
+
+```text
+e17e31cd feat(preload): update nick name preloads
+65efd6bc Merge branch 'display_multiline_fix' into 'master'
+d29f8f95 Merge branch 'ble-file-transfer-dir' into 'master'
+00578959 BLE: FileTrans: Use LOG_ERR
+2a542de3 BLE: FileTrans: Null terminate the string
+7cef2115 BLE: FileTrans: Create a directory if needed
+638ab1d5 docs: Update instructions for dependencies on Arch
+d079e3df feat: Add requirements.txt
+50eeecd9 style(ledfx): Reformat docs and comments
+ab8ee07f docs: Fix personal_state documentation
+5083858f docs: Fix os documentation
+19adf1f3 feat(pycardium): Add os.urandom()
+3a6507e3 fix(splashscreen): Adapt coding style
+00108bca fix(splashscreen): More useful message
+f97b1e53 fix(splashscreen): Print version correctly
+1427ed31 fix(splashscreen): Reduce to version
+13ad01e8 fix(splashscreen): Display useful version info
+d65034fe feat(splashscreen): Add tag/commit to epicardium splashscreen
+c3e34289 Added blacklist for write access for certain file names.
+9a2e9263 Add requirements.txt file to install working version of python packages
+c7494640 ble.py: Show MAC suffix
+ec611574 fix(ble-uart): Prevent buffer overflow
+f189fff0 I hate embedded string manipulation.
+2766e2f1 During startup of the BLE, the advert name is pulled off the random bytes of the mac in mac.txt.
+7df76031 fix(maxusb): Disable confusing message
+2e547c66 fix(serial-task): increase stack size
+7f938908 Update instructions for building on Arch
+73876f4b Merge branch 'display_multiline_fix' of https://git.card10.badge.events.ccc.de/omniskop/firmware into display_multiline_fix
+3e272a88 Merge remote-tracking branch 'original/master' into display_multiline_fix
+4edea9c1 fixed code style
+b0c748be fix(gfx): Break line before char is printed
+e287bb4d fixed code style
+52829e8b fix(gfx): Break line before char is printed
+```
+
+## [v1.2] - 2019-08-21 18:18
+
+```text
+8e8d8614 feat(apps): Add scope to preload
+e1a7684a fix(cdcacm): Disable before printing error
+4c74f061 fix(utime.c): set_time should operate in local tz
+e0824843 feat(pmic): Switch off if battery is low
+46ef3985 feat(pmic): Add API-call to read battery voltage
+79e2fb15 feat(epicardium): Periodically check the battery voltage
+5da9e074 feat(pmic): Implement AMUX reading
+8c59935e py: timezone workaround
+c7f59d3e fix(text_reader): Convert to unix line-endings
+78a7a7f4 docs: Fix underlines in ble/card10
+15649293 feat(app): Add some preloads
+b12e4ef9 chore(docs): Fix utime module docs
+3efbab13 feat(utime.c): add python functions to set time
+38f83243 chore(docs): Fix color documentation
+a966e221 chore(docs): Fix python-directives with double-module
+66cd10d4 docs: Document os.reset()
+5fe5fe31 docs: Document pride module
+338132e5 apped apps folder to search module search path
+cda91555 rename Main Clock to Home
+c2935c8c fixed syntax
+3017591a Rename preloaded apps to make use of hatchery folder structure
+842e9ad8 feat(menu.py): support scrolling for long menu entries
+fbf7c8c0 fix(menu.py) Refactored menu.py based on !138
+8aa8c31f feat(ble): Store bondings
+5e5c7a4f fix(menu.py): Fix color-mismatch of selector background
+```
+
+## [v1.1] - 2019-08-21 03:14
+### Added
+- Seed ``urandom`` PRNG with ``TRNG`` peripheral.
+- Show linenumbers in MicroPython tracebacks.
+
+### Fixed
+- **buttons**: Acquire lock before accessing I2C.
+- **rtc**: Fix RTC getting stuck because of improper initialization.
+- Make lifecycle task more important than dispatcher.
+
+## [v1.0] - 2019-08-21 00:50
+Initial release.
+
+[Unreleased]: https://git.card10.badge.events.ccc.de/card10/firmware/compare/v1.3...master
+[v1.3]: https://git.card10.badge.events.ccc.de/card10/firmware/compare/v1.2...v1.3
+[v1.2]: https://git.card10.badge.events.ccc.de/card10/firmware/compare/v1.1...v1.2
+[v1.1]: https://git.card10.badge.events.ccc.de/card10/firmware/compare/v1.0...v1.1
+[v1.0]: https://git.card10.badge.events.ccc.de/card10/firmware/-/tags/v1.0