Liquidpy

Last release of 0.6, for compatibilities.

- Add regex_replace filter (33)

- Allow tag for to have output(test | filter) in python mode.
- Fix stacks not print in some cases.
- Avoid closing stream after parsing
- Add better error message for attribute error while rendering
- Print 'KeyError' for render error if it is a KeyError.

- Update dependency versions

- Fix use of LiquidPython
- Add getitem and render filter for python mode
- Fix EmptyDrop for variable segment in python mode
- Fix re-rendering error for extends tag (29)

- Remodel the package to use a lexer to scan the nodes first and then lark-parse to parse the tag.

- Extract major model of node to allow `register_node` (18)
- Introduce `config` node and deprecate `mode`
- Allow specification of directories to scan for `include` and `extends` (19)
- Add loglevel `detail` to enable verbosity between `info` and `debug`
- Allow passing variables to included templates (8)
- Disallow variables in parent templates to be modified in included templates
- Require backtick ``( ` )`` for liquidpy expression to be used in statement nodes
- Add API documentations