expand property aliases support (#1384)

[delta-emil]

This expands the support for [TableAliases] to (hopefully) all places where table columns and object properties are being matched. It was previously only supported in table.CreateInstance<T>() and table.CreateSet<T>()

Fixes #1384

Types of changes

I'm not entirely certain is this is a bug fix or a new feature. The documentation - https://docs.specflow.org/projects/specflow/en/latest/Bindings/SpecFlow-Assist-Helpers.html - doesn't seem to mention that the effect of [TableAliases] is limited to CreateInstance&CreateSet, so taking that at face value, this seems to be a bug fix.

• [x] Bug fix (non-breaking change which fixes an issue).
• [ ] New feature (non-breaking change which adds functionality).
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected).
• [ ] Performance improvement
• [ ] Refactoring (so no functional change)
• [ ] Other (docs, build config, etc)

Checklist:

• [x] I've added tests for my code. (most of the time mandatory)
• [x] I have added an entry to the changelog. (mandatory)
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.

[bollhals]

Out of personal interest, (unrelated specifically to this PR): What is the expected outcome if the TableAliases of two properties are matching the same input name? Only the first one gets assigned or all of them?

[delta-emil]

Out of personal interest, (unrelated specifically to this PR): What is the expected outcome if the TableAliases of two properties are matching the same input name? Only the first one gets assigned or all of them?

When constructing objects (the pre-existing part that I haven't changed), all properties are assigned, and there is a test about it:

        [Fact]
        public void Property_aliases_allow_multiple_property_population()
        {
            var table = new Table("AliasOne", "AliasTwo", "AliasThree");
            table.AddRow("PropertyOne", "PropertyTwo", "PropertyThree");

            var test = table.CreateInstance<AliasedTestObject>();
            test.PropertyOne.Should().Be("PropertyOne");
            test.AnotherPropertyWithSameAlias.Should().Be("PropertyOne");
        }

For the purposes of comparing to existing objects, I made it only use the first property (in no particular order), because it was simplest. Also my thinking was that assigning same alias means you already know they are equal, so no need to check. But now that I'm thinking about it, maybe the more useful thing would be to check all of them.

As you noticed, there's no documentation on the same-alias feature, so I'm not sure.

[SabotageAndi]

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