Frameworks: Statusbar clock and date customizations (squash)

This reverts commit 38d19483a0c3dc8283eefe1bd6eeaf30abf897c3.

Revert "Revert "SystemUI: Status bar clock - fixes""

This reverts commit 38ab8d4e4f24847f36d12897616b1842ef6a6e4a.

Revert "Revert "SystemUI: Ensure that the Clock is actually enabled in IconMerger""

This reverts commit 3814e910dfa6bd91d2c538f3d42ae770d28798bb.