Fail hard if invalid make is passed

Currently if someone passes an unknown or misspelled make, we just return undefined/oauth/authorize?response_type=code&.... as the auth url. We should instead throw an error if the make is incorrect as the correct behavior leads to silent errors.

node-sdk/lib/auth-client.js

Lines 100 to 106 in 2d364ee

    
             } 
        
             const query = qs.stringify(parameters); 
        
             return `${config.oems[make]}/oauth/authorize?${query}`; 
        
           };

We should also probably have an enum of sorts for the makes.

So instead of client.getAuthUrl('mock'); -> client.getAuthUrl(smartcar.MAKES.MOCK)

	}

	const query = qs.stringify(parameters);

	return `${config.oems[make]}/oauth/authorize?${query}`;

	};