Oxidized Kilo

An experimental reimplementation of the Kilo tutorial with a Rust implementation.

Implementation notes:

The editor prefix has been removed from all the editor methods. Since this implementation uses impls on a shared Editor struct, the prefix is redundant
Any C equivalent functionality based on memory allocating/deallocating, or other manual book-keeping is instead implemented in a more idiomatic Rust fashion.
Row structs are referenced by their index in the Editor struct, rather than as a direct reference in method calls. This generally simplifies dealing with the rules of Rust (borrow checker).