Progress: Continue fixing iki_read (and eki_read).

Progress: Continue fixing iki_read (and eki_read).

I am using the 0.6.x iki_read runtime tests files to help identify problems.
This will also help identify problems with the 0.6.x iki_read.
(Of which I believe that there are some.)

This has a huge focus on addressing the `--line` and `--total`.
There are still known problems to solve, such as:
```
iki_read tests/runtime/iki/source/test-0000-basic.iki -L -a 1 -n hello
iki_read tests/runtime/iki/source/test-0000-basic.iki -L -a 1 -n hello -t
```

The EKI code is being partially updated while I am working on the IKI code.
However, big parts of it that are outdated are being left alone until I have IKI working correctly.
I will then update EKI accordingly and write the appropriate runtime tests.