- Added CameraComponent
- Added SceneCamera
- Renamed the previous Camera to OrthographicCamera
- Added Camera
- Renderer now takes a Camera* for projection and mat4& for view
- Scene::OnRender now takes in an optional Framebuffer to render to
- Minor tidying
- Added 'Camera::OnResize()' for keeping the aspect ratio updated to
prevent streching/squashing the scene
- Added 'FrameBuffe::Resize()'
- Enabled ImGui docking and viewport
- 'MirrorLayer::m_Camera' & 'MirrorLayer::m_Framebuffer' now adjust their properties
when ImGui's available region changes