Created a new class for single-switch touch interface.
Redirected touch switch to the single-switch touch interface class.
Connected touch interface to scanning switch.
Merge pull request #143 from jorgesilva/develop

Add FIXME messages for merge #141
Merge pull request #144 from ericwan78/issue-142

Connected keyboard scanning to touch interface. Fixes #142
Add all scaled graphical assets for Tecla Next HUD