Missing composer json file for siteimprove analytics modules

Problem/Motivation

When trying to install the siteimprove analytics module we ran into missing dependency issues.

Steps to reproduce

composer require the siteimprove analytics module

results:
Problem 1
- Root composer.json requires drupal/siteimprove_analytics, it could not be found in any version, there may be a typo in the package name.

Proposed resolution

Add a composer.json file to the root of the module.

Remaining tasks

User interface changes

API changes

Data model changes