doc: Doxygen-friendly script/descriptor.h comments #16947

1. 
   ch4ot1c commented at 10:31 PM on September 23, 2019: contributor

   Closes #16942.

   • Make Descriptor overview subtext of Interface for parsed descriptor objects.
   • Conform to @param[in, out] argname: Info in parameter comments. Present in code: https://github.com/bitcoin/bitcoin/blob/feb162d500273040c8a2e5cdd3393edf34dff45b/src/net_processing.cpp#L1001
   • Remove redundant argument type, in vs out mentions
   • Removed unnecessary backticks around IsSolvable(), since Doxygen builds a link to the known function's docs
   • Add backticks to refer to argnames

   descriptor.cpp has more documentation, but Doxygen's output doesn't include anything inside unnamed namespaces for some reason. Tried to access them via searchbar.

2. fanquake added the label Docs on Sep 23, 2019
3. doc: Doxygen-friendly descriptor.h comments 15ac916642
4. ch4ot1c force-pushed on Sep 24, 2019
5. laanwj requested review from MarcoFalke on Sep 26, 2019
6. 
   laanwj commented at 11:31 AM on September 26, 2019: member

   Adding @MarcoFalke as reviewer because of #16942.

7. MarcoFalke referenced this in commit 561a7d3047 on Oct 11, 2019
8. MarcoFalke merged this on Oct 11, 2019
9. MarcoFalke closed this on Oct 11, 2019

   ---

10. sidhujag referenced this in commit 7c6273b3a4 on Oct 13, 2019
11. fanquake referenced this in commit 1ab6c1267e on Oct 28, 2019
12. sidhujag referenced this in commit c5dbe3670a on Oct 28, 2019
13. MarkLTZ referenced this in commit 8823f65197 on Apr 7, 2020
14. MarkLTZ referenced this in commit 0a1571d657 on Apr 7, 2020
15. sidhujag referenced this in commit ee8836b266 on Nov 10, 2020
16. jasonbcox referenced this in commit fcdb643262 on Nov 13, 2020
17. PastaPastaPasta referenced this in commit 3de88f9b7a on Jun 27, 2021
18. PastaPastaPasta referenced this in commit 31232762d5 on Jun 28, 2021
19. PastaPastaPasta referenced this in commit cb72f16e22 on Jun 29, 2021
20. PastaPastaPasta referenced this in commit 1a13be6dc0 on Jul 1, 2021
21. PastaPastaPasta referenced this in commit b81f61591b on Jul 1, 2021
22. PastaPastaPasta referenced this in commit 5b34ff455b on Jul 12, 2021
23. PastaPastaPasta referenced this in commit 5a334e805f on Jul 13, 2021
24. PastaPastaPasta referenced this in commit 9b8250c7c6 on Jul 13, 2021
25. DrahtBot locked this on Dec 16, 2021

Review Requested
MarcoFalke