Merge branch 'Josh/Databaseless' into 'release'

api/mnemonic.go

api/mnemonic_test.go

go.mod

go.sum

network/message/sendCmix_test.go

network/message/sendManyCmix_test.go

network/node/register.go

network/node/register_test.go

registration/register.go

registration/register_test.go

storage/cmix/key.go

storage/cmix/store.go

storage/cmix/store_test.go