Update commonalities glossary with EdgeCloud-subproject relevant terms

[shilpa-padgaonkar]

camaraproject/WorkingGroups#120

[rartych]

In order to integrate the common glossary in Commonalities it is needed to provide the first version of subproject relevant terms by 15th of March.

It looks that this issue is related to #40.

[Kevsy]

@rartych this will be delayed for EdgeCloud as we have 3 sets of terminology to harmonise...it's underway though as part of the wider API harmonisation effort.

[rartych]

I agree. The first set of terms is aggregated here: https://github.com/camaraproject/WorkingGroups/blob/main/Commonalities/documentation/Glossary.md

In the harmonisation effort it is important to use "the developer-friendly terms" - the Glossary could be the hint.