Similar to Tendermint's PR,
https://github.com/tendermint/tendermint/pull/9250
Note that crypto/ledger is not updated in this PR, because if its
dependency on the R and S values being exposed by ParseDERSignature.
Updates #13423
Signed-off-by: Elias Naur <elias@orijtech.com>
Signed-off-by: Elias Naur <elias@orijtech.com>
Co-authored-by: Marko <marbar3778@yahoo.com>