Add Changelog entry for Matrix and E2MM modules
Add Changelog entry for Matrix and E2MM modules

Ref #1764

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Mogztter/opal,Mogztter/opal,kachick/opal,Mogztter/opal,opal/opal,opal/opal,iliabylich/opal,iliabylich/opal,kachick/opal,kachick/opal,iliabylich/opal,kachick/opal,opal/opal,Mogztter/opal,opal/opal