Sets a vector of floats in an entity, given a named network property.
This function is considered safer and more robust over SetEntDataVector, because it performs strict offset checking and typing rules.
void SetEntPropVector(int entity, PropType type, const char prop, const float vec, int element)
Vector to set.
Element # (starting from 0) if property is an array.
Invalid entity, property not found, or property not actually a vector data type.