Renaming Fragment -> Object and Template -> Class

[metatablecat]

As I move into Catwork 0.5, I want to rename some objects to better reflect their behaviour, this discusses the transition timeline away from the original names.

Summary

• Fragment -> Object: This better reflects what Catwork uses them for, as spawnable chunks of async code, alternative names are AsyncObject and CatworkObject, but the initial name was chosen for simplicity.
• Template -> Class: Templates create Fragments from a function. This is pratically just a class definition, so this name better suits this behaviour.

Whats happening to existing methods

The existing methods will be deprecated, and eventually removed, the method names that are alternatives are the renames for methods

For example:

• Catwork.Fragment -> Catwork.new^[1]
• Service:Template -> Service:Class
• Service:CreateFragmentFromTemplate -> Service:CreateObjectFromClass^[2]

^[1] new suits this constructor better, as its creating a single object under Catwork itself.
^[2] I might want a better name for this, feel free to reply with suggestions.