feat(me): add support for SSO configuration

[psauvage0]

Description

This PR adds support for the /me/identity/provider routes of the API, which handle the configuration of SSO.

Type of change

Please delete options that are not relevant.

• New feature (non-breaking change which adds functionality)
• Documentation update

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

• Test A: TF_ACC=1 go test -v ./... -run 'TestAccMeIdentityProvider.*'"

Test Configuration:

• Terraform version: terraform version: Terraform v1.6.2
• Existing HCL configuration you used:

    group_attribute_name = "http://schemas.xmlsoap.org/claims/Group"
    metadata = <<EOT
<?xml version="1.0" encoding="UTF-8"?>
<EntityDescriptor xmlns="urn:oasis:names:tc:SAML:2.0:metadata" entityID="https://ovhcloud.com/">
  <IDPSSODescriptor protocolSupportEnumeration="urn:oasis:names:tc:SAML:2.0:protocol">
    <KeyDescriptor use="signing">
      <KeyInfo xmlns="http://www.w3.org/2000/09/xmldsig#">
        <X509Data>
          <X509Certificate>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</X509Certificate>
        </X509Data>
      </KeyInfo>
    </KeyDescriptor>
    <NameIDFormat>urn:oasis:names:tc:SAML:2.0:nameid-format:persistent</NameIDFormat>
    <SingleSignOnService Binding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST" Location="https://ovhcloud.com/"></SingleSignOnService>
    <SingleSignOnService Binding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Redirect" Location="https://ovhcloud.com/"></SingleSignOnService>
  </IDPSSODescriptor>
</EntityDescriptor>
EOT
    disable_users = false
    requested_attributes {
      is_required = false
      name = "group"
      name_format = "urn:oasis:names:tc:SAML:2.0:attrname-format:basic"
      values = ["test"]
    }
    requested_attributes {
      is_required = false
      name = "aaa"
      name_format = "urn:oasis:names:tc:SAML:2.0:attrname-format:basic"
      values = ["bbb"]
    }
}

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings or issues
• I have added acceptance tests that prove my fix is effective or that my feature works
• New and existing acceptance tests pass locally with my changes
• I ran succesfully go mod vendor if I added or modify go.mod file

[rbeuque74]

On hold until we find a good way to test it.

If unclear, to check with me before merging or launching test in CI on this one.

• Wait