This function provides a comparison of two attributes.
Check if left attribute is smaller or equal than right attribute by checking smaller or equal for attribute kind, label color and level
| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| type(sdr_attribute_type), | intent(in) | :: | left | attribute to compare | ||
| type(sdr_attribute_type), | intent(in) | :: | right | attribute to compare against | 
is smaller??