Add instructions to player bots

[Pelipoika]

• [x] If you spawn as a gatebot the plugin could display an annotation at the gate you need to capture
  • [x] And once you capture said gate it would display another annotation at the next gate
• [x] If you don't spawn as a gatebot instruct the player to go deploy the bomb with an annotation above the bomb hatch
• [x] Squad instructions

[Pelipoika]

Finished https://github.com/Pelipoika/TF2-Bot-Control/commit/28df2e524cbbe1b96a3302799150127d55bd44d5