Fix compilation

Add error, info and success messages

Downgrade to C++17, avoid stdlib

Change file style

Add coverage target

Reenable syntax highlighting

Fix scrolling and word wrap

Separe Document and Line tests

Add proper debugging environment

Test and fix text erasing

Fix compiler flags

Remove Editable class

Fix prev() crash when first line empty

Fixed Gutter drawing and Data insertion

Compile with zapcc instead of clang

Fix crash on launch

Still crashes while editing

Refactor : replaced lines with contiguous array

This may look like a step back, but it is useful for libclang.
Also added tests.
As of now, editor crashes / tests don't pass.

Fix scrolling and input handling

Fix scrolling on file opening

Add better indentation