feat: add script to sync versions in package.json files

[beeman]

This PR adds a sync script to help sync the package versions in all the packages in this repo.

Usage should be pretty self-explanatory, the update command is probably the most useful.

Usage: yarn sync-package-json <command> [options]

Commands:
  check  <path>        Check package.json files
  help                 Show this help
  list   <path>        List package.json files
  set    [ver] <path>  Set specific version in package.json files
  update <path> <pkgs> Update all versions in package.json files

Arguments:
  path    Path to directory

Examples:
  yarn sync-package-json check
  yarn sync-package-json check basics
  yarn sync-package-json list
  yarn sync-package-json list basics
  yarn sync-package-json help
  yarn sync-package-json set @coral-xyz/[email protected]
  yarn sync-package-json set @coral-xyz/[email protected] basics
  yarn sync-package-json update
  yarn sync-package-json update basics
  yarn sync-package-json update . @solana/web3.js @solana/spl-token