[flexiglass] LocalStatusIconContext

Caches instances of StatusIconContainer and TintedIconManager for each scene or overlay in order to avoid the expensive work of instantiating them on each scene transition.

Bug: 410757909
Test: Manually verified that the cached items are being reused when
moving back and forth into and out of single shade scenes or dual shade
overlays
Flag: com.android.systemui.scene_container

Change-Id: I8268d734afdb08da02ee1cf956ca64d8097322dd