Sub-templates are not used

[Exotelis]

Hi there,

Release10.0.2 introduced sub templates for enums interfaces and types. However, it appears that the inclusion of these sub templates in the data-contracts.ejs file was initially added but later overwritten in the same PR. Consequently, it seems that the sub templates are no longer utilized in the overall codebase.

I'm curious if there was a specific reason behind this.