[WIP] remove all data elements from the web verifier

[VishnuSanal]

Fixes #1416

• Tests pass + manually tested
• Appropriate changes to README are included in PR

issue: no request for Utopia Naturalization Certificate currently - wip

[VishnuSanal]

@davidz25 I have hidden the "all" request from the web verifier, but Utopia Naturalization Certificate only has an "all" request. how to fix this? what are your thoughts on adding the following request (I am not sure whether this matches the spec though)? thanks!

.addSampleRequest(
                id = "given_name",
                displayName = "Given Names",
                mdocDataElements = mapOf(
                    NAMESPACE to mapOf(
                        "given_name" to false,
                    )
                ),
                jsonClaims = listOf("given_name")
            )
            .addSampleRequest(
                id = "birth_date",
                displayName = "Date of Birth",
                mdocDataElements = mapOf(
                    NAMESPACE to mapOf(
                        "birth_date" to false,
                    )
                ),
                jsonClaims = listOf("birth_date")
            )
            .addSampleRequest(
                id = "naturalization_date",
                displayName = "Date of Naturalization",
                mdocDataElements = mapOf(
                    NAMESPACE to mapOf(
                        "naturalization_date" to false,
                    )
                ),
                jsonClaims = listOf("naturalization_date")
            )
            .addSampleRequest(
                id = "mandatory",
                displayName = "Mandatory Data Elements",
                mdocDataElements = mapOf(
                    NAMESPACE to mapOf(
                        "given_name" to false,
                        "birth_date" to false,
                        "naturalization_date" to false,
                    )
                ),
                jsonClaims = listOf(
                    "given_name",
                    "birth_date",
                    "naturalization_date"
                )
            )

[VishnuSanal]

discussed over call - david thinks it is fine to leave all data elements as is & including all the elements during provisioning will be a good fix for this (we can handle this when we move from the in app generation of credentials to provisioning)