calico 0.4.0

A parser, printer, and data model for iCalendar.
Documentation
# `calico`

`calico` is a parser and data model for the iCalendar format.

As of v0.3.0, `calico` supports end-to-end parsing of iCalendar objects including all standard component types (VEVENT, VTODO, VJOURNAL, VFREEBUSY, VTIMEZONE, VALARM) and RFC 9073 components (PARTICIPANT, VLOCATION, VRESOURCE).

# RFC Support
- Full Support
    - [RFC 5545]https://www.rfc-editor.org/rfc/rfc5545
    - [RFC 5546]https://www.rfc-editor.org/rfc/rfc5546
    - [RFC 7986]https://www.rfc-editor.org/rfc/rfc7986
- Incomplete Support
    - [RFC 9073]https://www.rfc-editor.org/rfc/rfc9073
    - [RFC 9074]https://www.rfc-editor.org/rfc/rfc9074
    - [RFC 9253]https://www.rfc-editor.org/rfc/rfc9253
- No Support
    - [RFC 6321]https://www.rfc-editor.org/rfc/rfc6321
    - [RFC 6638]https://www.rfc-editor.org/rfc/rfc6638
    - [RFC 6868]https://www.rfc-editor.org/rfc/rfc6868
    - [RFC 7265]https://www.rfc-editor.org/rfc/rfc7265
    - [RFC 7529]https://www.rfc-editor.org/rfc/rfc7529
    - [RFC 7808]https://www.rfc-editor.org/rfc/rfc7808
    - [RFC 7953]https://www.rfc-editor.org/rfc/rfc7953
    - [RFC 8607]https://www.rfc-editor.org/rfc/rfc8607