EventGridv2 TypeSpec Api Preview (Azure#23204)

* start typespec

* adding eventgrid typespec for api w/ TODOs

* update eventgrid typespec with latest eventgrid v2 operations

* don't require content-type if there is no body

* Update specification/eventgrid/typespec/main.tsp

Co-authored-by: JoshLove-msft <54595583+JoshLove-msft@users.noreply.github.com>

* Update specification/eventgrid/typespec/main.tsp

Co-authored-by: JoshLove-msft <54595583+JoshLove-msft@users.noreply.github.com>

* changing naming of cloudevent and added in data_base64

* openapi.json

* Update specification/eventgrid/typespec/main.tsp

Co-authored-by: Libba Lawrence <llawrence@microsoft.com>

* Update specification/eventgrid/typespec/main.tsp

Co-authored-by: Libba Lawrence <llawrence@microsoft.com>

* Update specification/eventgrid/typespec/main.tsp

Co-authored-by: Libba Lawrence <llawrence@microsoft.com>

* lockTokens format, updated json, optional? params

* address code review comments

* name_change

* add @internal for python

* Update specification/eventgrid/Azure.Messaging.EventGrid/main.tsp

Co-authored-by: JoshLove-msft <54595583+JoshLove-msft@users.noreply.github.com>

* move @internal to client.tsp (Azure#23538)

* rename (Azure#23565)

* [EventGrid Typespec] breaking changes with april release of typespec (Azure#23539)

* breaking changes with april release of typespec

* unknown type

* [EG Typespec] Update Release behavior (Azure#23699)

* update behavior

* just behavior

* Add tspconfig and remove AAD auth (Azure#23717)

* add tspconfig

* add namespace

* remove oauth

* [EG TypeSpec] Archboard Comments (Azure#23696)

* refactoring off of apiview

* keep as int

* no duration

* aligning ack and release

* remove behavioral change

* ack to release

* initial naming changes

* Update ReleaseResult doc

Co-authored-by: JoshLove-msft <54595583+JoshLove-msft@users.noreply.github.com>

* Update AckResult doc

Co-authored-by: JoshLove-msft <54595583+JoshLove-msft@users.noreply.github.com>

* versioning twice-- remove one instance

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Co-authored-by: JoshLove-msft <54595583+JoshLove-msft@users.noreply.github.com>

* Address couple of stewardship team feedback. These include: 1. Rename CloudEventEvent to simply CloudEvent, 2. Add more description to the operations including the possible erorr codes, 3. Add PublishResult with empty Json object as successful response for the Publish operation, 4. Others.

* Add support for missing Reject operation + adding deliveryAttemptCount to BrokerProperties + Adding query parameter for release operation for deliveryDelayInSeconds

* Update failedTokens/SuccessfulTokens Description to address code review comments

* Update to match service behavior (Azure#23754)

* Update to match service behavior

* remove locktoken

* [EGv2] Editing unused variables (Azure#23917)

* event delivery delay not in preview

* remove from url comment

* [EGv2] Version dependency on Azure.Core  (Azure#23936)

* verioning fix

* spacing mishap?

* [EventGrid] Deliveryattempt change (Azure#23960)

* deliveryCount 5/1

* small typo

* [EventGrid] Remove internal (Azure#23995)

* remove internal

* remove client.tsp

* remove waitWaitTime (Azure#24078)

* move location of json file (Azure#24076)

* [Egv2] Encode param (Azure#24080)

* encode

* remove num default on duration

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Co-authored-by: Laurent Mazuel <laurent.mazuel@gmail.com>

* [EGv2] Fix pipeline (Azure#24098)

* regen off new commit for encode

* reference preview tag

* ignore word

* update readme to have both apis

* update with next autorest

* change format to int32

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Co-authored-by: Ashraf Hamad <ahamad@ntdev.microsoft.com>
Co-authored-by: Laurent Mazuel <laurent.mazuel@gmail.com>
Co-authored-by: JoshLove-msft <54595583+JoshLove-msft@users.noreply.github.com>
Co-authored-by: Ashraf Hamad <ahamad-MS@users.noreply.github.com>