Default reverse resolver

[makoto]

• Add DefaultResolver
• Add SignatureResolver which is the super class of DefaultResolver and L2ReverseRegistrar
• Change signature to use eip 191 version 0

[makoto]

To sum up about the events,

• ReverseClaimed are called by both L2ReverseRegistrar and SignatureReverseResolver (because setNameForAddrWithSignatureAndOwnable needs to pass contractAddress as the argument)
• NameChanged is only called by SignatureReverseResolver.

Hence both events should be defined at ISignatureReverseResolver

[makoto]

I think it should be incorporated, there's no reason for it to be a separate parameter here. at https://github.com/ensdomains/ens-contracts/pull/335#discussion_r1543548879 , addr is used to derive node at bytes32 node = _getNamehash(addr); line 73 @Arachnid

[Arachnid]

I think it should be incorporated, there's no reason for it to be a separate parameter here. at https://github.com/ensdomains/ens-contracts/pull/335#discussion_r1543548879 , addr is used to derive node at bytes32 node = _getNamehash(addr); line 73 @Arachnid

Line 73 of what file? I can't see anywhere that would require this to be a separate parameter to the outer signature.