hextui

Added a title with file path and size and added a cursor that can associate bytes with ascii and is now used to move up/down:
If cursor is on top visible row and u move it up u will reduce the offset, and if its at bottom u will increase the offset, aka scroll in file

Created a really basic hex viewer, no fancy features yet.
On left we have the offset, in middle the hex, and on right the asci that could be parsed