fix: player.get_camera, set_camera are not documented

doc/en/scripting/builtins/libplayer.md

@@ -112,6 +112,18 @@ player.get_name(playerid: int) -> str
 
 Player name setter and getter
 
+```lua
+player.get_camera(playerid: int) -> int
+```
+
+Returns the index of the player's current camera.
+
+```lua
+player.set_camera(playerid: int, camera_index: int)
+```
+
+Switches the player's camera. See [cameras](libcameras.md).
+
 ```lua
 player.set_selected_slot(playerid: int, slotid: int)
 ```