Add build script

Description

Issue(s)

https://gitlab.e.foundation/e/backlog/-/issues/4256

Test environment

A laptop or a server with the following requirements:

• memory > 16Go
• disk space 100Go
• a big CPU
• docker

/!\ still building on my computer...

Test procedures

1. Create a storage space to clone chromium

$ docker volume create chromium

2. Build bromite for arm

$ docker run -it -v $(pwd):/build -v chromium:/srv/chromium registry.gitlab.e.foundation/e/apps/browser /build/build.sh -a arm

3. Build bromite for arm64

$ docker run -it -v $(pwd):/build -v chromium:/srv/chromium registry.gitlab.e.foundation/e/apps/browser /build/build.sh -a arm64

4. Get artifacts

For each platform sign the apk and deploy each one on a compatible device.

Technical details

All build command lines from the gitlab-ci are moved in a build.sh script in order to build bromite everywhere.

Screenshots

Check list

• Self review
• Test procedure explained
• Tested on fresh install
• Tested applied as an update
• License
• Internal documentation
• User documentation