Port 9376

See merge request !1466

(cherry picked from commit 4cb0fde1)

d9f7201e [*] Ported changes from support-9376 branch.
13188fbf [*] Fixed building.
9909b751 Merge branch 'develop' into 'Port-9376'

Feature 9858

See merge request !1471

(cherry picked from commit a397c4c0)

54cebba0 [+] Added saves crc, sign and flags for export global_db.
e3b40588 [*] Added database import of old format and new format. If the old format...
5008a59b [*] Fixed export and import signature in gdb records.

[*] Changes to work with mempool list have been ported to develop.

See merge request !1465

(cherry picked from commit e0babc51)

ccee185c [*] Changes to work with mempool list have been ported to develop.
13483043 [*] Port from commits 67b819d3
40683829 [*] Port from commit be4df969
16a905bd Merge remote-tracking branch 'origin/develop' into ported_mempool-list

[*] Changes related to corrections to the tx_history command have been ported and a dump of the IN_REWARDS item has been added to the transaction datum.