fix: Include hook hints in evaluation options type. (#250)

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## This PR
In section 4.5.1 of hooks it specifies:
```
> `Flag evaluation options` **MAY** contain `hook hints`, a map of data to be provided to hook invocations.
```

But it does not include this in the types.md file, which makes this a
bit confusing.

### Related Issues
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Signed-off-by: Ryan Lamb <[email protected]>

chore: fix provider given clause

Signed-off-by: Todd Baert <[email protected]>

feat: add events (#182)

Signed-off-by: Todd Baert <[email protected]>
Co-authored-by: Justin Abrahms <[email protected]>
Co-authored-by: Lukas Reining <[email protected]>
Co-authored-by: Michael Beemer <[email protected]>
Co-authored-by: Kavindu Dodanduwa <[email protected]>
Co-authored-by: Thomas Poignant <[email protected]>
Co-authored-by: Tom Carrio <[email protected]>
Co-authored-by: Ryan Lamb <[email protected]>
Co-authored-by: Ben Rometsch <[email protected]>
Co-authored-by: Pete Hodgson <[email protected]>

fix: links and link checks (#172)

Signed-off-by: Todd Baert <[email protected]>

chore: section clarity, harden API, providers (#149)

**Marking Evaluation API and Providers `hardening`** and a few
non-functional changes here that improve structure.

specifically:

- explicitly mark and number all sections
- section headings have consistent numbering (provider section numbering
was different than the other docs)
- removed "draft" language 

An alternative to marking all of `provider` and `evaluation API` as
hardening would be just marking all existing sections therein as
hardening, which might be better since we'd have to do that anyway if we
added a new experimental section.

see: #146 for more on release
goals.

Signed-off-by: Todd Baert <[email protected]>

feat!: make error code an enum and include optional error message (#142)

See #141 for context.

Signed-off-by: Ryan Lamb <[email protected]>
Co-authored-by: Todd Baert <[email protected]>

removed evaluation options from provider method signatures (#134)

BREAKING CHANGE

Resolves: #133 

Signed-off-by: James-Milligan <[email protected]>

Consolidate evaluation context merge order in the spec (#132)

Signed-off-by: Michael Beemer <[email protected]>

Merge pull request #129 from toddbaert/feat/remove-xformation

Remove context transformation, ref in provider hooks

Merge pull request #119 from open-feature/provider-hooks

Remove context transformers. Add provider hooks