manifest: grouping of device,vendor & kernel trees

Patch Set 8: added pigz
Patch Set 9: track CM's fsck_msdos
Patch Set 10: track CM's Bluetooth, vcard, sepolicy and libsepol
Patch Set 11: track CM's Bluedroid and skia

Signed-off-by: Arnav Gupta <championswimmer@aokp.co>
Change-Id: I62e2869addf782daa93edd746b1352c50b8346b8