RPC: Plug getConfirmedSignaturesForAddress2 into bigtable storage (bp #11395) (#11405)

* Plug getConfirmedSignaturesForAddress2 into bigtable storage

(cherry picked from commit 4222932e08)

# Conflicts:
#	ledger-tool/src/bigtable.rs
#	storage-bigtable/src/lib.rs

* Upgrade help description

(cherry picked from commit 9abb7db5f8)

Co-authored-by: Michael Vines <mvines@gmail.com>

cli/src/cluster_query.rs

@@ -256,9 +256,8 @@ impl ClusterQuerySubCommands for App<'_, '_> {
         )
         .subcommand(
             SubCommand::with_name("transaction-history")
-                .about("Show historical transactions affecting the given address, \
-                       ordered based on the slot in which they were confirmed in \
-                       from lowest to highest slot")
+                .about("Show historical transactions affecting the given address \
+                        from newest to oldest")
                 .arg(
                     pubkey!(Arg::with_name("address")
                         .index(1)