Make 'myst daemon' as separate command

[Waldz]

myst default -> help
myst daemon # to call call Tequilapi endpoinds
myst service --identity=0x1 --agreed-terms-and-conditions

# future commands
myst connect --provider=0x1
myst bar | taverna | cli

Acceptance Criteria:

• Create command deamon (now it's myst)
• Make help as default command
• Make clear WIKI docs how to run a node with myst service

[Waldz]

Feedback after testing:

• daemon/node starts automatically with each command is very awkward:
• sometimes it stats several times myst service and myst cli starts 2 daemons
• with myst cli I cant test myst service, because it tries to start new daemon

Expected result:

1. myst daemon <daemon-args> starts Node (daemon)
2. myst cli does not start new daemon, just uses daemon by pointing with tequilapi-.. args
3. myst service and myst cli does not stop Node after exiting