[entitylist] Ensure that we don't generate entries for a domain with itself

[fmarier]

An entity list entry like this:

"properties": [
    "example.com"
],
"resources": [
    "example.com",
    "example.net"

]

Should lead to only one entry on the resulting pairwise allow list: example.com/?resource=example.net

It should not include example.com/?resource=example.com

[groovecoder]

It looks like this is already the case. E.g., there are no entitylist entries logged for consiliummedia.com which is defined:

    "Consilium Media": {
        "properties": [
            "consiliummedia.com"
        ],
        "resources": [
            "consiliummedia.com"
        ]
    },

And, we don't create a property-resource allowance entry for the same domain. E.g., there's no complex.com/?resource=complex.com entry even though Complex Media is defined with complex.com in both the properties and resources:

    "Complex Media": {
        "properties": [
            "complexmedianetwork.com",
            "complex.com",
            "collider.com",
            "solecollector.com",
            "pigeonsandplanes.com",
            "theridechannel.com",
            "firstwefeast.com"
        ],
        "resources": [
            "complexmedianetwork.com",
            "complex.com"
        ]
    },

[groovecoder]

I'm leaving this open and adding a Continuous Integration label to it and 2 other "ensure" issues we have. We can roll those into a meta-issue to add all 3 checks to a single CI script.