* disconnect from nodeclient
* cleanup connections in tests
* kademlia disconnects from nodeclient
* updating disconnect method for mocks
* creates separate disconnect and removeAll methods for tests
* adds init to connection pool
* fix folder cleanup and disconnect
* creates and cleans up test db files and disconnects kad
* removes db/.keep
* includes disconnect within cleanup methods
* creates public init method on connection pool to handle mutex copy issues
* remove all after disconnect
* pair creation and destruction
* checks disconnect error
* remove ctx
* fixes mock kad
