Add a number of sample and test apps to the Gradle build
Add a number of sample and test apps to the Gradle build

Change-Id: Ia84ff4177a7d37369e4ef16e398e01ba9c5607e0
(cherry picked from commit 5e6270761f80dceb350cc3af2d976a06ae2870b3)

OneRom/external_okhttp,android-ia/platform_external_okhttp,w3nd1go/android_external_okhttp,boulzordev/android_external_okhttp,geekboxzone/mmallow_external_okhttp,Infinitive-OS/platform_external_okhttp,YUPlayGodDev/platform_external_okhttp,byterom/android_external_okhttp,xin3liang/platform_external_okhttp,w3nd1go/android_external_okhttp,geekboxzone/lollipop_external_okhttp,TeamExodus/external_okhttp,CyanogenMod/android_external_okhttp,bigfatbrowncat/avian-pack.android.external.okhttp,boulzordev/android_external_okhttp,AOSPB/external_okhttp,DirtyUnicorns/android_external_okhttp,Infinitive-OS/platform_external_okhttp,DirtyUnicorns/android_external_okhttp,byterom/android_external_okhttp,SlimRoms/android_external_okhttp,boulzordev/android_external_okhttp,byterom/android_external_okhttp,geekboxzone/lollipop_external_okhttp,AOSPB/external_okhttp,TeamExodus/external_okhttp,Omegaphora/external_okhttp,Omegaphora/external_okhttp,AOSP-CAF/platform_external_okhttp,OneRom/external_okhttp,bigfatbrowncat/avian-pack.android.external.okhttp,YUPlayGodDev/platform_external_okhttp,CyanogenMod/android_external_okhttp,geekboxzone/mmallow_external_okhttp,YUPlayGodDev/platform_external_okhttp,AOSPB/external_okhttp,w3nd1go/android_external_okhttp,geekboxzone/mmallow_external_okhttp,PAC-ROM/android_external_okhttp,TeamExodus/external_okhttp,AOSP-CAF/platform_external_okhttp,PAC-ROM/android_external_okhttp,geekboxzone/lollipop_external_okhttp,android-ia/platform_external_okhttp,AOSP-YU/platform_external_okhttp,AOSP-YU/platform_external_okhttp,Omegaphora/external_okhttp,xin3liang/platform_external_okhttp,AOSP-YU/platform_external_okhttp,AOSP-CAF/platform_external_okhttp,android-ia/platform_external_okhttp,PAC-ROM/android_external_okhttp,Infinitive-OS/platform_external_okhttp,OneRom/external_okhttp,CyanogenMod/android_external_okhttp