Added support so that smile can use hats (#33924)

Added support so that smile can use hats (#33924)

* Added support so that smile can use hats

Changed Prototypes/Entities/Mobs/NPCs/pets.yml
Added smile_inventory_template.yml in Resources/Prototypes/inventoryTemplates
Added dir smile_displacement.rsi inside Resources/Textures/Mobs/Pets/smile.rsi
Added smile_displacement.rsi/meta.json
Added smile_displacement.rsi/head.png

* Fixed sprite path in ProtoTypes/Entities/Mobs/NPCs/pets.yml mapping to wrong smile_displacement.rsi
Fixed smile_inventory_template.yml using uiWindowPos as 1,2 instead of 0,1

Moved Resources/Textures/Mobs/Pets/smile.rsi/ to .../Pets/smile/smile.rsi/
Moved Resources/Textures/Mobs/Pets/smile.rsi/smile_displacement.rsi to .../Pets/smile/smile_displacement.rsi

* Minor fixes: removing comments and change naming

Renamed Resources/Textures/Mobs/Pets/smile/smile.rsi To .../Mobs/Pets/Smile/smile.rsi

* Removed smile_inventory_template.yml and used head_inventory_template.yml instead