Gap analyzer shows no gaps if there is no data in the provided range🐛

[eliasbruvik]

Instead of showing no gaps, it should add a gap to the report for the entire range of the checked data. The start and end index should be the start and end index index the user provided for where to look for data. In the gapSize column, add something like "No data found in the given range". This should be done for every mnemonic that does not have any data.

Also, if the data starts or ends half way through the user specified range, that should also count as a gap if it is above the specified gap size.
In the example below, if you look for gaps in the range [0,10] with a gap size of 2, the range [3,10] should count as a gap.