Support Tolgee simplified parameter format

[JanCizmar]

The Tolgee Figma works fine with strings, but it's not able to manage texts with provided parameters, so it's not convenient to use it with "Design -> Localization -> Development" workflow, where developers don't create new keys, but they use the keys created in Figma.

• Add the parameter support for Tolgee Simplified Format so the {name} is replaced by example
• Enable user to add example for each parameter, so designers can see how it will look like with it