Expose controls for horizontal and vertical vane position/mode for lambda function access

[incase]

Hi.

Essentially, if equivalents of on_vertical_swing_change()/on_horizontal_swing_change() (or those functions) would be public instead of protected, it would be much easier for us to integrate from our smart home solution (which publishes control info to mqtt) into our ACs.

Cheers,
Sven

[incase]

Should probably be equivalents of update_swing... functions. Or just those functions.