CliCommand constructor
CliCommand()
Implementation
CliCommand() {
argParser
// application
..addSeparator('Application options:')
..addOption('target',
abbr: 't', help: 'Application target.', valueHelp: 'application')
..addOption('target-path',
help: 'Application target location.\n'
'Must be within application root folder.',
valueHelp: 'lib/[package].dart')
..addOption('directory',
abbr: 'C', help: 'Application root folder.', valueHelp: '.')
..addMultiOption('define',
abbr: 'D',
help: 'Define an environment declaration.',
valueHelp: 'key=value');
}