filter allowed_types

[emphasize]

Introduces allowed_types, a list of message types that get permitted to be sent to the master
Defaults to only "recognizer_loop:utterance" if no additional msg_type is added to the node client (db) configuration

new allowed types should be added per cli (not per config) to avoid overrides

changes

• blacklist: this filter was brought up to the send block as defined

list of ovos message_type to never be sent to this client

• revert the factory/type annotation clients: dict = field(default_factory=dict) in HiveMindListenerProtocol as this interferes with
  

  HiveMind-core/hivemind_core/protocol.py

  Lines 112 to 113 in 4d367c8

  	def clients(self) -> Dict[str, HiveMindClientConnection]:
  	return HiveMindListenerProtocol.clients

  
  This should be handled differently