feat(codegen): support for api key auth trait (#2154)

* feat(codegen): support for api key auth trait

* chore: update to new codegen decorator interface

* chore: include basic test

* chore: set api key into rest xml extras model

* chore: update test

* chore: refactor api key definition map

* feat(codegen): add api key decorator by default

* chore: add smithy-http-auth to runtime type

* chore: reference new smithy-http-auth crate

* Update codegen-client/src/main/kotlin/software/amazon/smithy/rust/codegen/client/smithy/customizations/ApiKeyAuthDecorator.kt

Co-authored-by: John DiSanti <johndisanti@gmail.com>

* Update codegen-client/src/main/kotlin/software/amazon/smithy/rust/codegen/client/smithy/customizations/ApiKeyAuthDecorator.kt

Co-authored-by: John DiSanti <johndisanti@gmail.com>

* Update codegen-client/src/main/kotlin/software/amazon/smithy/rust/codegen/client/smithy/customizations/ApiKeyAuthDecorator.kt

Co-authored-by: John DiSanti <johndisanti@gmail.com>

* Revert "chore: set api key into rest xml extras model"

This reverts commit 93b99c87034fb530e8cc5396679ed3c5ac4385be.

* chore: moved api key re-export to extras customization

* chore: include test for auth in query and header

* chore: fix linting

* Update codegen-client/src/main/kotlin/software/amazon/smithy/rust/codegen/client/smithy/customizations/ApiKeyAuthDecorator.kt

Co-authored-by: John DiSanti <johndisanti@gmail.com>

* Update codegen-client/src/main/kotlin/software/amazon/smithy/rust/codegen/client/smithy/customizations/ApiKeyAuthDecorator.kt

Co-authored-by: John DiSanti <johndisanti@gmail.com>

* Update codegen-client/src/main/kotlin/software/amazon/smithy/rust/codegen/client/smithy/customizations/ApiKeyAuthDecorator.kt

Co-authored-by: John DiSanti <johndisanti@gmail.com>

* Update codegen-client/src/test/kotlin/software/amazon/smithy/rust/codegen/client/customizations/ApiKeyAuthDecoratorTest.kt

Co-authored-by: John DiSanti <johndisanti@gmail.com>

* Update codegen-client/src/test/kotlin/software/amazon/smithy/rust/codegen/client/customizations/ApiKeyAuthDecoratorTest.kt

Co-authored-by: John DiSanti <johndisanti@gmail.com>

* chore: add doc hidden to re-export

* chore: ensure extras are added only if it applies

* Revert "chore: add doc hidden to re-export"

This reverts commit 8a49e2b47b955ad92442c1021b9386b903814b38.

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Co-authored-by: Eduardo Rodrigues <eduardomourar@users.noreply.github.com>
Co-authored-by: John DiSanti <jdisanti@amazon.com>
Co-authored-by: John DiSanti <johndisanti@gmail.com>