fix: `Foo::bar` Foo matched as class name
fix: `new self` self matched as keyword instead of class name
fix: `use function` is matched as package

feature: class name / namespace (package) can not begin with number
feature: added binary and underscore number format
feature: added operators `::`, `->`, `=>`, `<=>`, `...`, and some assignment operators
fix: moved `.` from punctuation to operators (concatenation operator)
feature: for `type` added subtypes `type-casting`, `type-hint`, `return-type`
feature: added backtick string quoted string (shell exec)
feature: for keywords `parent`, `self` and `static` added subtype `static-context` when a static prop/const/method accessed on them
feature: for class name added subtype `class-name-fully-qualified` when class name is fully qualified
feature: for class name added subtype `static-context` when a static prop/const/method accessed on it

fix: use single quotes for token names

…is overridden)

fix: removed A-Z in case insensitive patterns
removed: alias shell-comment
fix: types handled as keywords

feat: unite comment patterns