Add all compiler options to documentation

[developedby]

The compiler options are described in https://github.com/HigherOrderCO/Bend/blob/main/docs/compiler-options.md.

However, it only talks about options that change the compilation output.
There are other options that need to be added there:

Warnings

Specific warnings can be shown or not, or can be treated as errors. The choice of what to do with a warning is called the severity. The flags for that are -Dwarning-name (deny, treat as error), -Awarning-name (allow, don't show), `-Wwarning-name (warn, the default of most things).

The existing individual warnings are: irrefutable-match, redundant-match, unreachable-match, unused-definition, repeated-bind, recursion-cycle, import-shadow, missing-main.

We can also toggle all warnings to one of the severities with -Aall, -Wall or -Dall.

Runtime options

Besides the compiler, we can pass some options to select how hvm is run. These apply only to the run* commands (run, run-c, run-rs, run-cu).

• --stats, -s: Shows some runtime information on elapsed time, number of interactions, etc.
• --pretty, -p: Shows the result in a prettified form (better indentation mostly).
• --linear, -l: Uses a different algorithm for reading HVM results that shows the duplications in the output.
• --hvm-bin=<path>: Pass a different executable to run instead of just calling the hvm command. Can also be set (with lesser priority) by the HVM_BIN environment variable.