VideoCapturerAndroid: Move to android folder and split out camera enumeration into separate file

Pure code move of:
talk/app/webrtc/java/src/org/webrtc/VideoCapturerAndroid.java
into:
talk/app/webrtc/java/android/org/webrtc/VideoCapturerAndroid.java
talk/app/webrtc/java/android/org/webrtc/CameraEnumerationAndroid.java

NOPRESUBMIT=true

Review URL: https://codereview.webrtc.org/1323453002

Cr-Original-Commit-Position: refs/heads/master@{#9809}
Cr-Mirrored-From: https://chromium.googlesource.com/external/webrtc
Cr-Mirrored-Commit: 6813ec84fbe813e259e7b2f7d65f6d79e221e2ab
1 file changed