Support changing default table schema property name

[cnizzardini]

Adds name to OpenApiSchema attribute. This will change the OpenAPI property name for a given schema. For instance, if your table is user_requests, the default alias would be UserRequests and it would appear in OpenAPI schema as 'UserRequests'. You can now change this to Requests with the following:

[OpenApiSchema(name: 'Requests')]
class UserRequests extends Entity
{