cli: convert coins to smallest unit registered (#7777)

* cli: convert coins to smallest unit registered

fixes: #7623

- test order of decimal operations
- support both int and decimal coins, truncate when normalizing to
  base unit

* Update types/coin_test.go

* Update types/coin_test.go

Co-authored-by: Alessio Treglia <alessio@tendermint.com>
Co-authored-by: Amaury <amaury.martiny@protonmail.com>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

simapp/simd/cmd/genaccounts.go

@@ -67,7 +67,7 @@ contain valid denominations. Accounts may optionally be supplied with vesting pa
 				addr = info.GetAddress()
 			}
 
-			coins, err := sdk.ParseCoins(args[1])
+			coins, err := sdk.ParseCoinsNormalized(args[1])
 			if err != nil {
 				return fmt.Errorf("failed to parse coins: %w", err)
 			}
@@ -76,7 +76,7 @@ contain valid denominations. Accounts may optionally be supplied with vesting pa
 			vestingEnd, _ := cmd.Flags().GetInt64(flagVestingEnd)
 			vestingAmtStr, _ := cmd.Flags().GetString(flagVestingAmt)
 
-			vestingAmt, err := sdk.ParseCoins(vestingAmtStr)
+			vestingAmt, err := sdk.ParseCoinsNormalized(vestingAmtStr)
 			if err != nil {
 				return fmt.Errorf("failed to parse vesting amount: %w", err)
 			}