Globals in theme, version and help callbacks

• Added globals to theme, version and help callbacks
• Globals will be absent from theme if event is caused by failure during their parsing
• Fixed data type not getting printed in default theme for required options in command's help

Global options

• Added global options that could be handled in hook of run

0.10.1

• Fixed default global help using outdated command description handler

0.10.0

• Massively improved default command help and global help
• Fixed events sometimes not receiving cliName (now name) param even if specified in run()'s config
• Reworked events: changed event naming (seemingly random -> snake_case), grouped all error events under error-type event
• Added description to run()'s config - field to print to in global help by default, passed to events along with cliName (now name)
• Renamed cliName to name in run()'s config (role of it stays the same)

0.9.2

• Added command list to unknownCommandEvent theme event

0.9.1

• Fixed default positional enum error message

0.9.0

• Added short descriptions to commands
• Added cli name for usage in themes
• Added event-based themes
• Added ability to not add handlers to command with subcommands (command help is called for command in such case)
• Changed commands' metaInfo to metadata, removed type restriction
• Fixed test function incorrectly parsing some argument strings
• Fixed .max() incorrectly comparing value with value provided by .min
• Fixed number options getting parsed into strings
• Fixed inconsistencies in default error messages
• Fixed positional enums
• Fixed enums excluding undefined from type even when they're optional
• Expanded tests
• Updated docs

0.8.2

• Completely prevented command() function from mutating input object
• Optimized command validation

0.8.1

• Improved command/subcommand cloning
• Removed unnecessary logic

0.8.0

• Fixed clone-related crashes with subcommands
• Now command assign parent to subcommands on creation
• Added function to convert command collection into data about commands
• Renamed runCli() to run()