Add OWNERS, NOTICE, METADATA and MODULE_LICENSE files. Also add an am: 5667fb2ba1 am: ed41405324 am: dd36822a57

Original change: https://android-review.googlesource.com/c/platform/external/MPAndroidChart/+/2278086

Change-Id: I71caf158a07f42489e1491f64d1835ba895fe5c7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>