Oxidized Kilo

A reimplementation of the Kilo tutorial in Rust.

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).
The prompt method of the editor can not take an arbitrary formatting string, due to Rust requiring a string literal for string formatting macros.

Reverse coloring for search results, so comment types can have different colors
Two separate vectors are used to define the two types of keywords, rather than the weird pipe suffix