Semantic Localization Api

[Axemasta]

Whilst you could use mocale to set localizations for your semantic properties... there could be scope for some good user experience!

Add a method for each semantic property:

• Localize
• LocalizeSemanticDescription
• LocalizeSemanticHelp

Each api would use the same key, allowing for a few qol features:

• Code in localization code without writing all localizations for all semantic properties
• Use the same key in code for each semantic type, ie the key: KeyOne would be used by all 3:

<Label Text="{mocale:Localize KeyOne}" 
    SemanticProperties.Description="{mocale:LocalizeSemanticDescription KeyOne}"
    SemanticProperties.Hint="{mocale:LocalizeSemanticHint KeyOne}" />

• Json files still requires all keys:

{
    "KeyOne": "Hello World",
    "KeyOne_SemanticDescription": "A label that says hello world",
    "KeyOne_SemanticHint": "Something else that helps...",
}

If these values don't exist, a null value should be returned to prevent messing with default screen reader behaviours. Maybe some config, we DEFINITELY dont want $KeyOne$ being set as a semantic hint / description!!!