CLI Version Info and `all` Fix

std/all: Generate list. (#186)

I noticed that `rand` was missing, so...

Random Numbers

std/rand: Add. (#184)

* std/rand: Add.

* wdte: Update some dependencies.

Macro API Breakage

multiple: Fix API Breakage from Adding Macros (#180)

* scanner: Document macros argument to `New()` and fix position info.

* scanner: Document `MacroMap`.

* ast: Fix API breakage.

* cmd/wdte: Fix API breakage.

* auto: Fix API breakage.

* repl: Fix API breakage.

Macros

multiple: Add Macros (#179)

* scanner: Add Macro token type.

* wdte: Update some dependencies.

* scanner: Add support for specifying a macro map.

* ast: Add support for specifying a macro map for the scanner.

* wdte: Add support for specifying a macro map for the scanner.

Don't Ignore Errors in Ignored Chain Sections

wdte: Don't Ignore Errors in Ignored Chain Sections (#177)

* wdte: Don't ignore errors in ignored chain sections.

Closes #174.

* wdte: Update some dependencies.

std/stream: Fix `Extent()` and Allow Negative Sizes

v0.5.8

std/stream: Fix `Extent()` and allow negative sizes. (#176)

std/stream: Add `Extent()` and Tweak `Drain()`

std/stream: add `Extent()` and tweak `Drain()` (#173)

* std/stream: make `Drain()` return the last value instead of the stream

Closes #172.

* std/stream: Add `Extent()`.

* wdte: Update some dependencies.

std/io: default to stderr in `Panic()`

std/io: default to stderr in `Panic()` (#169)

* std/io: Default to stderr in `Panic()`.

* wdte: Update some dependencies.

Error Chains

multiple: add error chains and `Panic()` (#168)

* res/grammar: Add error chains.

* scanner: Add error chain operator.

* wdte: Add support for error chains.

* std/io: Add `Panic()`.

* wdte: Remove the backtrace from `Error.Error()`.

std/stream: `fold`, `repeat`, and `limit`

std/stream: `fold`, `repeat`, and `limit` (#165)

* std/stream: Add `Fold()`.

* std/stream: Add `Repeat()` and `Limit()`.

* wdte: Update some dependencies.