DDS4CCM11 — Move generic interaction support (GIS) to the CCM specification

The current DDS4CCM specification is made of two parts

1) Description of a generic interaction support (GIS) allowing to define extended ports and connectors

2) Use of this GIS to define extended ports and connectors dedicated to DDS.

The first part (GIS) has been designed in purpose of supporting all future CCM extensions and would be better placed in the CCM specification.

Proposal is therefore to move it from DDS4CCM to CCM.

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Severity I guess is minor as it does not affect at all the ability to implement. Actually it could have been treated as éditorial apat the point of revisiting compliance...

Move the GIS section as a sub-section in CORBA – Part 3 / Component Model
Rationale for the move: The GIS is not at all specific to DDS-related extended ports and connectors and will be used for other CCM extensions.
Rationale for keeping the addition in a single CCM sub-section: It is easier to understand the purpose of the extension and to set it as optional.