[lldb][AArch64] Update disassembler feature list and add tests for all extensions

This updates the disassembler to enable every optional extension.
Previously we had added things that we added "support" for in lldb.
(where support means significant work like new registers, fault types, etc.)

Something like TME (transactional memory) wasn't added because
there are no new lldb features for it. However we should still be
disassembling the instructions.

So I went through the AArch64 extensions and added all the missing
ones. The new test won't prevent us missing a new extension but it
does at least document our current settings.

Reviewed By: labath

Differential Revision: https://reviews.llvm.org/D121999