Move javac_wrapper.sh scripts into own files. am: 9de71a4e46 am: ff4a137df8 am: bf66328eee

Original change: https://android-review.googlesource.com/c/platform/art/+/2057472

Change-Id: Ic6ecb727e9169b0429a2f192e1d1ebbd98a3205c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>