Serpentai

* FEATURE - analytics client is now automatically initialized and in scope for a game agent
* FIX - analytics WAMP component now uses the analytics topic config key to determine redis key
* FIX - Locking Tensorflow to appropriate version on Windows

* FIX - use interpolation order 0 in frame transformation pipeline resize
* FIX - use offshoot selection kwarg when discovering to avoid running code of all plugins
* FIX - sprite identifier needs to reject sprites that don't have the same shape as query sprite when using constellation of pixels
* FIX - mild attempt to shutdown frame grabber process on game agent exception

Exiting Beta! Changed the versioning scheme to YEAR.QUARTER.RELEASE

* IMPROVEMENT - easier framework installation; only the core gets installed with `serpent setup`; other modules with more involved installation steps can be set up later as needed!
* IMPROVEMENT - added a `serpent update` command; headache-free framework updates
* IMPROVEMENT - added a `serpent modules` command to check the installation status of optional modules
* MAJOR FEATURE - cross-platform gameplay recording with ̀`serpent record`; capture keyboard/mouse inputs alongside frame buffers who are optionally put through a reward function; data is neatly packed in a single HDF5 file when done;
* FEATURE - a "force" kwarg can now be passed to input controller methods to ignore the game focus requirement
* FEATURE - context frame captures can now be scoped to game plugins' screen regions
* FEATURE - GameFrame objects now have a timestamp representing the capture time with microsecond precision
* FEATURE - GameFrame objects can now hold frame bytes (for PNG data) instead of a frame array
* FEATURE - FrameGrabber get_frames doesn't require shape and dtype information anymore
* FEATURE - added a mechanism to register custom reward functions in a GameAgent
* TWEAK - no longer halving width & height in context frame capture; frame transformation pipeline should be used instead
* TWEAK - files generated from any frame capture operation are now named with the timestamp instead of a random UUID4
* FIX - CNNInceptionV3Classifier can now also handle uint8 dtypes
* INTERNAL - reshape metadata and timestamp are now encoded alongside frame bytes; saving a ton of reshape preperation logic
* INTERNAL - added 'PNG' operator in frame transformation pipelines
* INTERNAL / REFACTOR - better OS abstractions to control platform-specific snippets
* NOTEBOOK - added a Jupyter Notebook to demonstrate common operations with the input recording HDF5 files

* FIX - inceptionv3 context classifier is now using the newer normalize function instead of the old scale_range one
* REFACTOR / FIX - added a mechanism to handle scancodes for extended keys in NativeWin32 input controller. Fixes arrow keys on Windows :)
* FIX - added a dtype kwarg to FrameGrabber get_frames. necessary when using 'FLOAT' pipeline operator

* FEATURE - added 'FLOAT' operator in frame transformation pipelines (needed for DQN)
* FEATURE - added 'SSIM' mode to sprite identifier
* FIX - sprite identifier score thresholds now work consistently with all offered modes
* FIX - resolved an issue with sprite identifier constellation of pixels mode and sprites with alpha channel
* FIX - added macOS command key to KeyboardKey enum and added a mapping for PyAutoGUI input controller backend
* FIX - linux window controller will now only consider visible windows when attempting to find game windows
* FEATURE - better range normalization in serpent.cv: ability to pass in target domain

* FEATURE - added frame transformation pipelines
* FIX - DQN and DDQN fixes and Windows compatibility tweaks