a deselect method for Spool

[ahmadtourei]

For ambient noise interferometry workflow, we often need to exclude parts of the data that include high-amplitude signals or events. Having a Spool.deselect(time=(t1, t2), distance=(d1, d2)) similar to Spool.select method would be beneficial.

[d-chambers]

Sounds good to me. It might get a little bit tricky to implement though before we refactor the indexer (which will basically address all the open issues as well).