Add player receives actionbar event

[mergu]

Tested via:

my_events:
  type: world
  events:
    on player receives actionbar:
      - announce to_console "Player <player.name> received actionbar: <context.message>"
      - announce to_console "Raw json: <context.raw_json>"
      #- determine cancelled
      #- determine 'raw_json:{"text":"determined raw json","color":"#61C2FF"}'
      - determine "message:<&color[#ffa3e2]><&l>[MY_PREFIX] <&r><context.message>"

with commands:

/ex actionbar "<&color[#61C2FF]>this is a test"
/ex actionbar "<&color[#61C2FF]><element[this is a test].font[illageralt]>"
/title @a actionbar {"text":"this is a test","color":"#61C2FF"}

everything works as expected and also handles custom fonts and rgb colors. some output: https://paste.denizenscript.com/View/93878

[mcmonkey4eva]

This overrides the packet even if the event doesn't fire and/or doesn't determine anything.
It should only override if there's a modification.