old TODO's and clean up

[MCWertGaming]

We need to implement all TODO's and clean up the code a bit:

• [ ] move constants in conversion.hpp into a enum
• [x] change linux sscanf to something better (clang-tidy issue) (TODO)
• [x] Silently disable raw mode if the terminal is not interactive (TODO)
• [ ] skip adding a number to ansi codes on 0 (0 is the deafult value if no value is specified)
• [ ] throw runtime errors on wrong values for ANSI functions
• [x] optimize datatypes (use for 0 - 255 ranges uint8_t)
• [ ] make the code available for unsupported sequences in input function
• [x] merge window and window24 together
• [ ] add screen parameter to window class (TODO)
• [ ] make a function out of the ansi code from the new prompt
• [x] remove function names from headers