Add unit tests for t3lib_div::removeDotsFromTS()
t3lib_div::removeDotsFromTS() can convert TypoScript array to regular arrays by removing the the dot "." at the end of property nodes. The test cases shall help to test the correct behaviour concerning overriding of values.
propertyA = 13
propertyA.value = 123
On removing the dot of propertyA there will be a conflict - however the last setting overrides the first one.
(issue imported from #M11846)