When unmarshaling the json response from the API in languages to a
dynamic object having the omitempty field tag on types such as float64
case the key to be omitted on 0.0 values. Various langages will
interpret this as a null when 0.0 is the actual value.
This patch removes the omitempty tags on fields that are not structs
where they can be safely omited.
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>