feat: customtendermint config (#11049)

## Description

Closes: https://github.com/cosmos/cosmos-sdk/issues/10936

avoid copy pasting init command, allow teams to overwrite config by default. 

another feature proposal

---

### Author Checklist

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I have...

- [ ] included the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] added `!` to the type prefix if API or client breaking change
- [ ] targeted the correct branch (see [PR Targeting](https://github.com/cosmos/cosmos-sdk/blob/master/CONTRIBUTING.md#pr-targeting))
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- [ ] followed the guidelines for [building modules](https://github.com/cosmos/cosmos-sdk/blob/master/docs/building-modules)
- [ ] included the necessary unit and integration [tests](https://github.com/cosmos/cosmos-sdk/blob/master/CONTRIBUTING.md#testing)
- [ ] added a changelog entry to `CHANGELOG.md`
- [ ] included comments for [documenting Go code](https://blog.golang.org/godoc)
- [ ] updated the relevant documentation or specification
- [ ] reviewed "Files changed" and left comments if necessary
- [ ] confirmed all CI checks have passed

### Reviewers Checklist

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I have...

- [ ] confirmed the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] confirmed `!` in the type prefix if API or client breaking change
- [ ] confirmed all author checklist items have been addressed 
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- [ ] reviewed tests and test coverage
- [ ] manually tested (if applicable)

simapp/simd/cmd/root.go

@@ -8,6 +8,7 @@ import (
 
 	"github.com/spf13/cast"
 	"github.com/spf13/cobra"
+	tmcfg "github.com/tendermint/tendermint/config"
 	tmcli "github.com/tendermint/tendermint/libs/cli"
 	"github.com/tendermint/tendermint/libs/log"
 	dbm "github.com/tendermint/tm-db"
@@ -71,8 +72,9 @@ func NewRootCmd() (*cobra.Command, params.EncodingConfig) {
 			}
 
 			customAppTemplate, customAppConfig := initAppConfig()
+			customTMConfig := initTendermintConfig()
 
-			return server.InterceptConfigsPreRunHandler(cmd, customAppTemplate, customAppConfig)
+			return server.InterceptConfigsPreRunHandler(cmd, customAppTemplate, customAppConfig, customTMConfig)
 		},
 	}
 
@@ -81,6 +83,18 @@ func NewRootCmd() (*cobra.Command, params.EncodingConfig) {
 	return rootCmd, encodingConfig
 }
 
+// initTendermintConfig helps to override default Tendermint Config values.
+// return tmcfg.DefaultConfig if no custom configuration is required for the application.
+func initTendermintConfig() *tmcfg.Config {
+	cfg := tmcfg.DefaultConfig()
+
+	// these values put a higher strain on node memory
+	// cfg.P2P.MaxNumInboundPeers = 100
+	// cfg.P2P.MaxNumOutboundPeers = 40
+
+	return cfg
+}
+
 // initAppConfig helps to override default appConfig template and configs.
 // return "", nil if no custom configuration is required for the application.
 func initAppConfig() (string, interface{}) {