* The tinting logic isn't good for developers, this change removes that
logic and respsects whatever icon they provide, HOWEVER, if it is not
adaptive it gets put on an adapative shape, consistent with launcher
* Updates the dot colour to be based on colour sample from the app icon
bitmap rather than the notification colour, consistent with launcher
* Updates Notification documentation to reflect changes
Test: manual with Bubbles test app (options for all the icon types)
Bug: 138943209
Change-Id: I8abfcef9ac1dcdd9f74643e84ef40a97385b744b
05e860bef3