EphemeralWriteOnly: Initial support for MMv1 Generation in schema & docs

[BBBmau]

Goal of this PR is to include WriteOnly property as part of generation to support the upcoming Ephemeral WriteOnly Attributes in Terraform 1.11

We add a new field titled write_only that includes WriteOnly in the schema of any field with write_only: true

Some things to know:

The generation will fail when write_only: true is set with any of the following:

• sensitive (write_only attributes are meant to replace sensitive values in the future)
• default_from_api/output set properties to be Computed + Optional which we do not support for ephemeral write-only attributes

It's also worth noting that flatteners are not needed as write-onlys will not be saved to state.

This PR also introduces WriteOnlyProperties that's needed to separate the Ephemeral Write-Only Attributes from a resource into it's own section when generation documentation (similar to how we have arguments and attributes. A new section will be introduced under the name Ephemeral Attributes Reference