Proto commits in CovidShield/mobile

These 4 commits are when the Protocol Buffers files have changed:

Commit:1c23055
Author:Henry Tao
Committer:Henry Tao

Fix retrieval flow on Android Fix ExposureKey naming Fix tests Fix OverlayView

The documentation is generated from this commit.

Commit:e96b94f
Author:Henry Tao
Committer:Henry Tao

Fix submission flow on Android

Commit:49bcd09
Author:Sergey Gavrilyuk
Committer:Sergey Gavrilyuk

Update to latest protobuf protocol

Commit:033d971
Author:Burke Libbey
Committer:Burke Libbey

Initial open-source release Authors alphabetically: Co-authored-by: Anne-Marie Leger <31770030+annemarieleger@users.noreply.github.com> Co-authored-by: Burke Libbey <burke@libbey.me> Co-authored-by: Guillaumegranger1 <guillaume.granger@shopify.com> Co-authored-by: Henry Tao <henry.tao@shopify.com> Co-authored-by: Jordan Good <jordan.good@shopify.com> Co-authored-by: Kyle Peatt <kpeatt@gmail.com> Co-authored-by: Sergey Gavrilyuk <sergey.gavrilyuk@shopify.com> Co-authored-by: emilybulger <56970554+emilybulger@users.noreply.github.com>