Add 'User Report Settings Templates' endpoints support

[andrii-bodnar]

Crowdin API has a set of endpoints to manage user report settings templates. We need to add support for these in the Crowdin API clients.

We could probably reuse some of the existing 'Report Setting Templates' code.

References:

• List User Report Settings Templates
• Add User Report Settings Template
• Get User Report Settings Template
• Delete User Report Settings Template
• Edit User Report Settings Template