merge develop into main

[azjezz]

warning: don't squash commits when merging, we want to preserve the commits.

includes:

• chore: refactor project structure azjezz/php-parser-rs#1 ( chore: refactor project structure #147 )
• chore: don't use class member flags for interface member flags azjezz/php-parser-rs#2 ( chore: don't use class member flags for interface member flags #145 )
• feat: make parser, and lexer immutable azjezz/php-parser-rs#3
• feat: add parser state scope azjezz/php-parser-rs#4
• fix: enum parser azjezz/php-parser-rs#5
• fix: properties parser azjezz/php-parser-rs#6
• fix: namespace parser azjezz/php-parser-rs#7
• fix: make sure that properties have the correct type azjezz/php-parser-rs#8
• fix: require comma between parameters azjezz/php-parser-rs#9
• fix: use by reference in anonymous functions azjezz/php-parser-rs#10
• fix: multiple issues regarding optional comma azjezz/php-parser-rs#11
• fix: don't allow multiple default arms for match expression azjezz/php-parser-rs#12
• fix: support scoped types azjezz/php-parser-rs#13

closes #143
closes #133

[azjezz]

can now be sent across threads safely, meaning we can have multiple threads parsing different files using the same parser, previously that was not possible.

[azjezz]

now that we can know what scope we are in, we can improve the type parser, and be able to figure out if self, parent, static are valid in the current context/scope.

more things we can do with this new state Scope:

• error on __CLASS__ outside class scope
• error on __METHOD__ outside method scope
• error on __FUNCTION__ outside function scope
• error on readonly for properties when inside a readonly class scope ( this is allowed 🙄 )

[azjezz]

🎉