cm: Update use of vendor/extra `

 * Use inherit-product to pick up extra configuration

Change-Id: Icb0c8b09cd10b503e2dca09b7a972a613c354e7d
add Carrefour Belgium APN

Change-Id: I3f94243033ecb72ceac16ee38ed5961ecba91600
add Virgin Mobile France APN

Change-Id: I1069367046d4d1a220f052757e40cc5d8184b2b4
Themes: Add versioning to the theme feature

As new features and enhancements to the theme apk format are added
we will need a way for themes to specify which version of the theme
format they are targeting.  Exclusion of the theme feature in a
theme apk will imply v1.

Change-Id: I0016d58341ca3144bb4a4faa16663ab29439ab24
add Vodafone, AMC, Eagle & Plus APNs

apns provided by to87al
Change-Id: Ib4de2213f0197f137aa78218b4cb65a5612afa86
add tuBiedronka APNs

apn provided by PanCebula
Change-Id: Ib3eee9dbceaafca8ed9344e638798eca343eee58
added DJUICE mms APN

Change-Id: I5802316592905e6007c1c55b697f87523dc1fb89
added Bmobile Trinidad APN

added from CYAN-5334
Change-Id: Ib1f38b5bf74b41c6f1a39f722c2f16fbdd608e1c