Carla

* Added command-line parameter -carla-no-hud
* Remove override gamma from weather settings
* Fixed issue road map generation hangs cooking command
* Organise Python client and make sample script
* Rename maps
- CARLA_ORIGIN_0 --> Town02
- CARLA_ORIGIN_1 --> Town01
* Fixed Carla-Cola machine falling at begin play

* Fixed issues with weather
* Fixed missing building

* Autopilot mode has been removed, now server sends AI control together with measurements every frame
* State and position of traffic lights and signs are now included in the measurements too
* Added a python console client
* Fixed crash when client sends an invalid player start
* Fixed some issues with the dynamic weather not looking as it used to do
* Fixed some collision boxes missing

* Fixed issue server was destroyed on every reset, closing the connection
* Fixed issue agent servers connect too late
* Improvements to the python client
* Added python client test suite for testing the release
* Added image converter
* Fixed missing floor on CARLA_ORIGIN_0
* Changed sidewalk texture
* Improvements on the physics of some vehicles
* More props and decals added to the cities

* Upgraded to Unreal Engine 4.17
- Fixes memory leaks
- Fixes crashes with C++ std classes
* Redesigned CarlaServer
- Faster, avoids unnecessary copies
- Sends images as raw data (no compression)
- Supports synchronous and asynchronous mode
- Networking operation have a time-out
- Synchronous methods have a time-out
- Pure C interface for better compatibility
- Unit tests with GoogleTest
* New server-client protocol
- Upgraded to proto3
- Supports repeated fields
- Optionally send information about all dynamic agents in the scene
- Now sends transforms instead of locations only
- Autopilot mode added to control
* New build system to avoid linkage issues
* Added autopilot mode
* Added an on-board camera to the car
* Added traffic lights and speed limit to player state
* Added player pawn selection to config file
* Improved blueprint interface of the C++ classes
* Some performance improvements to vehicle controllers
* Fix issues with depth material in Windows
* Fix issues with random engine not being available for vehicles
* Fixed issue that compiling a release hang when saving the road map
* Added more content; 7 vehicles, 30 pedestrians, many decals and props
* Randomized pedestrian clothing
* Many improvements and fixes to the city levels and assets
* Added sub-surface scattering to vegetation
* Added key binding to change weather during play
* Added key binding to toggle autopilot mode
* Added a second camera to the player

* Add weather presets specific for each level
* Some map fixes, adjust weather presets specific for each level
* Fixed regression that some walkers may go at extremely slow and fast speeds