Group of endpoints that allows manage properties to a collection
For every collection it is possible to assign properties. These properties, for example, can describe a group of NFT images as exemplified below:

A collection image example
This collection image, for example, can have the following properties:
- Background: yellow;
- Object: a to do list.
In this group of endpoints it is possible to:
- Create a property with values for a collection;
- Delete a whole property with the values includes;
- Delete values from a propety.
The collectionId and the property are common required properties in all 3 endpoints. The first one refers to the identification of a collection, and the second one refers to the name of the desired property. Besides that, the values are required in 2 of 3 endpoints, this field refers to the desired values of a property.
