Tutorial03 Mastering coz bud

List of properties configurable in bud files.

Name	Type	Default	Description
`engine`	string\|object	'handlebars'	Template engine name or engine itself
`cwd`	string	process.cwd()	Working directory path
`data`	object		Data which template render with
`mkdirp`	boolean	false	Make parent directories if needed
`setup`	object		Optional settings for template engine
`force`	boolean	false	Should overwrite file when already exists, or not
`mode`	string\|number	'644'	Permission of generated files. (eg., '444' for readonly files)
`path`	string		Destination file path. If not provided, guess from bud file path
`tmpl`	string\|function	'json'	Template file path or registered template name or template function

Some properties are optional and coz guess missing properties with some rules.

Property	Guessing Rule
`tmpl`	If `tmpl` is not provided, coz guess it from bud file path. For example, *".my-world.txt.bud"* without `tmpl` property search template with pattern **".my-world.txt."***. If no template found, uses JSON template as fallback.
`path`	If `path` is not provided, coz guess it from bud file path. Remove `/^\./` and `/\.bud$/` from basename and use it as writeout path. For example, *".my-world.txt.bud"* without `path` property will generate *"my-world.txt"*.

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