Make EVENT_CONTEXT.location DV_TEXT instead of String

Description

DV_TEXT allows free and coded text if needed for COMPOSITION.context.location

That can be set at runtime or archetyped.
Current string doesn't allow much archetyping besides setting a regex constraint.

Using codes simplifies mapping to other specs (XDS metadata, CDA, etc.)

Environment

None

Status

Reporter

Pablo Pazos

Labels

None

Components

Affects versions

BASE Release 1.0.3

Priority

Major