v2.0 refactor - modular config and VPE components

[tetele]

Total refactoring of the config with the following updates:

• usage of VPE components
• split config into smaller, reusable modules (in order to serve multiple similar configs, as per this idea)
• extraction of the touchpad self-regulating functionality from the config to ESPHome, thus saving a lot of config lines

Modular config component architecture (components can be used overlappingly, in this order):

• base.yaml - the core of the config + LED control placeholder scripts which do nothing
• ble_improv.yaml - implements improv over BLE
• leds.yaml - defines the LEDs on the unit and allows external light control
• controls.yaml - defines touchpads and buttons. Some LED control implemented based on touches
• microphone.yaml - defines a microphone placeholder
• media_player.yaml - defines a media player placeholder and some volume control +display automations
• audio-nabu.yaml - implements audio devices using the VPE components, overrides microphone and media_player
• voice_assistant-nabu.yaml - implements the voice_assistant component using audio devices defined in audio-nabu.yaml
• micro_wake_word.yaml-nabu - implements micro_wake_word component