The following changes and checks have been added:

1. Added a check to the wallet signature verification function to make sure that the wallet certificate is loaded at all, otherwise an error message is displayed.
2. Added NULL check for a key that was derived from a wallet certificate.
3. Added error output in wallet info if a wallet contains a barb whose type is not supported.

[*] Port from feature-10248: For the tx_create command, a check has been added to ensure that the address of the source of funds and the recipient do not match.

feature-7671_d

See merge request !1478

(cherry picked from commit 5fc42cb9)

d2fc9452 transferring CLI command wallet to develop
f909506f ...
bd8c45d0 Merge branch 'develop' of https://gitlab.demlabs.net/cellframe/cellframe-sdk into feature-7671_d