[SMTG] Add new object type SMTG

[OliverBeck01]

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[GuilhermeSaraiva96]

missing an example as well

[huber-nicolas]

Please expect a delay for the review of this pull request. We have to clarify the language dependent fields of this object.

[huber-nicolas]

Thank you for submitting your object type to the AFF Repository. After detailed discussion with @wurzka @schneidermic0 please go over my comments above and solve them. Please also solve the abaplint issues.

As we discussed in a previous meeting, please remove the ty_template_content, in order to put the language parts into separate files.

[OliverBeck01]

Thank you for the feedback. I changed the requested lines and uploaded the updated documents.

[Markus1812]

Ok, thanks for the update. I'll add the ux-review-ready label so you can continue with the ux review when you are ready.