Add DTS extensions as a separate product.

[DaniilKl]

Dasharo version (if applicable)

2.1.0

Affected component(s) or functionality (if applicable)

DTS GUI and Dasharo products list.

Brief summary

DTS extensions were added in last updates. This feature introduces custom extensions for Dasharo Tools Suite that could be downloaded and installed per client after subscription keys have been provided to DTS. In case, keys without access to DTS extensions were provided, following warning is being printed:

Your credentials do not have access to DPP packages. If you bought one, check the credentials you have used, and contact support. If you did not buy any DPP print_warning "packages - feel free to continue.

Which is misleading, because DPP states for Dasharo Pro Package, so, in the warning it looks like Dasharo Pro Package packages.

The fact that the warning was added in the form it was added confirms, that developers are not fully aware of the feature presence, that might state, that the future were not added in any internal or external docs/protocols.

The solution would be to describe and document the future accordingly, and choose a name for it (for example DTS extentions). Then fix all controversial issues related to its name.