Alpha Release 0.9.0

Changes from 0.8.0:

This release adds the following:

• Animations can now be created, which can be enqueued into GameObjects.
• Projects can now be loaded/reloaded in code.
• Dear ImGui has also been added to provide a handy debugging window. This can be enabled with the --debug flag and pressing F3 in-game.

Lua Changes:

• Tab size is now a part of TextObject, and is configurable with the tab_size property.
• Moved the No Program file into its own project folder.
• Created a common folder and moved readonly.lua into it.
• Added a setText() function, to simplify writing text into a GameObject.
• Added a series of functions in common/interactive.lua, to aid in developing input-related GameObjects.
• Added Animation and AnimationFrame to the list of serialisable usertypes.
• Renamed all vector types to be proper-case (e.g. vec4 becomes Vec4, and ivec2 becomes Ivec2).

C++ Changes:

• Added Unicode support.
• Added the option to load different projects through code.
• Added a text input mode, allowing users to type special characters.
• Added clipboard support.
• EventListeners can now be configured to listen to specific GameScenes.
• Added the object_hover event, that triggers when hovering over a GameObject.
• Added min, max and clamp to the GLM vector usertypes.
• Added a debug window using Dear ImGui, to display information about game objects, scenes, resources, etc.
• Added borderless support for game scenes.
• Split usertypes into 2 categories, each with their own base class: BaseObject and BaseResource.
  • Amended BaseResource-type classes to accept a string name, rather than a filepath.
  • Converted Audio and ShaderProgram into a resource-type.
  • Renamed CharacterParams to Character.
  • Moved GameScene into it's own type, so it can be updated separately from other objects/resources.
  • Added Animations as a resource, which the user can add/edit/remove AnimationFrames from.
• Added AnimationStates to GameObjects, allowing users to queue animations into an object.
• Added a master volume that affects all Audio resources.
• Moved more files around to make better sense (this is the last time, I promise).
  • Moved TexturePacker into rendering.
  • Moved Background, Character, CharacterMap, Timer and Window into usertypes.
  • Moved ShaderProgram into usertypes/resources.
• Added more validation and assertions to all usertypes.
• Configured the type names for all usertypes (i.e. instead of term_engine::usertypes::CharacterParams, it is now Character).

Other Changes:

• Added a default font for MacOS builds.
• Amended the CMakeLists file to specify each file being built, rather than relying on glob searches.
• Added new example projects:
  • example/menus
  • example/multiple_game_scenes
  • example/multiple_projects
  • example/text_input
  • example/unicode