Returns whether a CMap of this character collection may be used with a CIDFont of other, or the other way
round: the registries and orderings are equal. The supplement is not compared.
public bool IsCompatibleWith(CidSystemInfo other)
The other character collection.
ISO 32000-2 §9.7.3. The Identity CMaps are compatible with every CIDFont whatever their system info (§9.7.5.2).