AdfsRelyingPartyTrust: Add Support for SAML Endpoints

[X-Guardian]

The AdfsRelyingPartyTrust resource needs to support SAML endpoints.

New resource properties required:

Property Name	Type	Description
SamlEndpoint	MSFT_AdfsSamlEndpoint Array	Specifies an array of Security Assertion Markup Language (SAML) protocol endpoints for this relying party.

The MSFT_AdfsSamlEndpoint class would contain the following properties:

Parameter	Type	ValueMap	Description
Binding	String	Artifact, POST, Redirect, SOAP	Specifies the binding type of the endpoint.
Index	SInt32		Specifies the index that is defined for this endpoint.
IsDefault	Boolean		Indicates whether this is a default endpoint for the particular protocol type.
Protocol	String	SAMLArtifactResolution, SAMLAssertionConsumer, SAMLLogout, SAMLSingleSignOn	Specifies the type of service at the endpoint.
ResponseUri	String		Specifies the response URI for the endpoint.
Uri	String		Specifies the URI of this endpoint.

Example DSC configuration would look like:

AdfsRelyingPartyTrust Example
{
    Name         = 'Example'
    SamlEndpoint = @(
        MSFT_AdfsSamlEndpoint
        {
            Binding     = 'POST'
            Index       = 0
            IsDefault   = $false
            Protocol    = 'SAMLAssertionConsumer'
            Uri         = 'https://example.com'
        }
    )
}