v1.2

• Separate classes & structs to more files.
• Tweak style checking, use clang-tidy properly.
• Change compiler to clang.
• Allow to work with accessorry decoders.
• Chenge classes names to avoid duplicities.
• Add output buffer.
• Allow to specify interface type & handle different interfaces
  differently.
• Allow to check for conflict of output commands & do not send commands
  when they are in conflict.
• Several small but important fixes.