Add format:map-generator command (#2563)

I'd like to submit some PRs in the future to add additional options for
logging and debugging to the map-generator, however I don't want to
introduce any code style changes in feature requests.

## Description:

I noticed there was not any style guide or formatting being done for the
go files, and went with the simplest built-in approach w/ [go
fmt](https://go.dev/blog/gofmt)

- Adds a `format:map-generator` npm command that will run the default
`go fmt` in the `map-generator` directory to format the go code.
- Runs the formatter and commits the changes to `main.go` and
`map_generator.go`
- Updates the `map-generator` README:
  - Updated location for generated files
  - Updated Links to use markdown links
  - Add `info.json` example
  - Add in-game enabling instructions with list of files to modify
  - Add development tools section with format command

## Please complete the following:

- [X] I have added screenshots for all UI updates
- [X] I process any text displayed to the user through translateText()
and I've added it to the en.json file
- [X] I have added relevant tests to the test directory
- [X] I confirm I have thoroughly tested these changes and take full
responsibility for any bugs introduced

## Please put your Discord username so you can be contacted if a bug or
regression is found:

tidwell

package.json

@@ -14,6 +14,7 @@
     "perf": "npx tsx tests/perf/*.ts",
     "test:coverage": "jest --coverage",
     "format": "prettier --ignore-unknown --write .",
+    "format:map-generator": "cd map-generator && go fmt .",
     "lint": "eslint",
     "lint:fix": "eslint --fix",
     "prepare": "husky",