Progress: IKI Read.

Progress: IKI Read.

Implement the basics of raw mode.
Raw mode should instead work in conjunction with the content, literal, and object modes so redesign accordingly.

Add some additional documentation to the help section.

Expand and Substitute are mostly ignored thus far and will be implemented at a later time.
The substitution will be copied from the argv as-is, so plan on using static strings instead of dynamic strings.

There will be function argument cleaning to do once I determine how Expand and Substitute will be implemented.
Until then, the arguments are fine as-is.