Call recording service implementation, show recordings and allow playback in call history

Change-Id: I56bf6857d87260e20b6a84c4db6e463b0fd87dcc
[2/2] Dialer: Add a non-intrusive dialoger for incoming calls

Change-Id: Ibbb9653b4a1da12fe3a7ad8f98ecbb8bffb13311
Dialer: add Incoming Call Background (2/2)

Change-Id: I9f494385b53918c755cd9b12a0ecba989e153ad8