v0.3.5

• improved cli docs (#77)
• delay window creation (#84)
• darken background when adding overlay (#83)
• wait for window to be closed (#79)
• added video support (#76)
• fixed draw mask not shown without overlay (#75)
• added mypy linting (#73)
• renamed resnet50 model path constants (#72)
• added reference to layered vision (#59)
• various library upgrades