Add Rust System Properties generator. am: 4b9aae6017

Original change: https://android-review.googlesource.com/c/platform/system/tools/sysprop/+/2683126

Change-Id: Icee8365940bbbfedf61ac2d2b09dfe2701ff3e9c
Signed-off-by: Automerger Merge Worker <[email protected]>