HAL4RT — Clarify the sentence.

From Matthew Hause,

Section 7.4.5
“If the nature of the product, an API that does not function exists, it will implement all of the API.”
Please clarify this sentence as it is confusing.
Same for “(A motor which is corresponding to only the speed control in, or if it can not support the torque control API · Position Control API) And, non-support API will be implemented as you plan to return the "API unimplemented error (HAL_NOT_IMPLEMENTED)" as the API of the return value.”