Adds a new `Info` method to the Kademlia endpoint that returns the following local node info:
* ID
* Type
* Metadata (email and wallet)
* Restrictions (free storage and bandwidth)
The new endpoint is exposed as `inspector kad node-info` command too.
* preparing for use of `customtype` gogo extension with `NodeID` type
* review changes
* preparing for use of `customtype` gogo extension with `NodeID` type
* review changes
* wip
* tests passing
* wip fixing tests
* more wip test fixing
* remove NodeIDList from proto files
* linter fixes
* linter fixes
* linter/review fixes
* more freaking linter fixes
* omg just kill me - linterrrrrrrr
* travis linter, i will muder you and your family in your sleep
* goimports everything - burn in hell travis
* goimports update
* go mod tidy
* add filter field into OverlayOptions message
* chooseFiltered method, add excluded parameter in populate method
* change excluded type to []dht.NodeID in ChooseFiltered, change comment
* change name filter to excluded_nodes in proto
* implement helper function contains
* delete ChooseFiltered and add its functionality into Choose method to keep original author's history, add excluded argument into Choose calls
* regenerate mock_client.go
* regenerate protobuf
* update test case to use new IDFromString function
* remove old kademlia test code
