[Feature] Introduce new method createCommunicationIdentifier(from rawId:)

[JoshuaLai]

Introducing new method to serialize and deserialize the communication identifier the raw id.
Follow up from feedback from PR(#1255)

Swift Interface:

        let acsRawId = "8:acs:37691ec4-57fb-4c0f-ae31-32791610cb14_37691ec4-57fb-4c0f-ae31-32791610cb14"
        var communicationUserIdentifier = createCommunicationIdentifier(from: acsRawId)
        XCTAssertTrue(communicationUserIdentifier.isKind(of: CommunicationUserIdentifier.self))
        XCTAssertEqual(communicationUserIdentifier.kind, .CommunicationUser)
        XCTAssertEqual(communicationUserIdentifier.rawId, acsRawId)

ObjC Interface:

    NSString *acsRawId = @"8:acs:37691ec4-57fb-4c0f-ae31-32791610cb14_37691ec4-57fb-4c0f-ae31-32791610cb14";
    id<CommunicationIdentifier> identifier = [CommunicationIdentifierFactory createCommunicationIdentifier:acsRawId];
    XCTAssertTrue([identifier isKindOfClass:CommunicationUserIdentifier.class]);
    XCTAssertEqual(identifier.kind, IdentifierKind.CommunicationUser);
    XCTAssertEqualObjects(identifier.rawId, acsRawId);
    XCTAssertEqualObjects(((CommunicationUserIdentifier *)identifier).identifier, acsRawId);

[tjprescott]

Holding temporarily while we let the archboard weigh-in.

[JoshuaLai]

Approach 1:
https://gist.github.com/JoshuaLai/9808644195f0d258ab6711c3b3a273bf
Approach 2:
https://gist.github.com/JoshuaLai/cb229389308bb2f0fa90ebc97e9f60fe
Approach 3:
https://gist.github.com/JoshuaLai/8922535a3dac9a2a7c09c6218c08880e

[petrsvihlik]

this is blocking #1335