Authorityspoke

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* change "quotes" schema field names to "anchors"
* add doctests to documentation
* update example in readme to work with current version
* use new Eyecite API changing "base_citation" to "corrected_citation"

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* remove Enactment download functions (use Legislice download client instead)
* remove Opinion download functions (use CAPClient class instead)
* use different Legislice schema imports for JSON and YAML
* move fake download client to separate module
* add read methods to CAP opinion download client
* add read methods to CAPClient
* DecisionSchema can accept months instead of dates
* merge CAPCitation and CAPCitationTo schemas
* Holding has separate add_enactment and with_enactment methods
* Rule has separate add_enactment and with_enactment methods
* Rule has separate add_factor and with_factor methods
* Procedure has separate add_factor and with_factor methods
* increase versions of Nettlesome and Legislice dependencies
* add CAPClient to top level of package
* add "Creating and Loading Holding Data" documentation page
* Rules select all text of Enactments without selected text only during init, not during schema load
* change field name from "quotes" to "anchors" in YAML import files
* fix bug: dump methods couldn't find Decision and Opinion schemas

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* Comparison methods use Explanations instead of ContextRegisters
* Remove io/anchors module
* Remove "factors" module that conflicted with Nettlesome module of same name
* Add Fact.negated method
* Remove "role" param for Procedure.add_factor
* Rules can be added even if one of the operands has more Enactments
* Procedure.recursive_terms doesn't include FactorGroups
* Procedure.terms doesn't include FactorGroups
* Add comparable_with methods
* Decision is no longer a dataclass
* remove context param from Opinion comparisons
* handle Opinion.explanations_implication(HoldingGroup)
* Increase minimum Nettlesome version to 0.5.0

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* Import Nettlesome library as dependency
* Remove "anchors" fields from Factors in AuthoritySpoke Holding API Schema

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* Predicate.content attribute no longer includes an extra placeholder for a "quantity"
* Predicate.content attribute must be a valid Python string template
* Rename "context_factors" field to "terms"
* Rely on Predicate placeholder names to label terms as interchangeable
* Remove Predicate.reciprocal field used to label terms as interchangeable
* Add Comparable class for Predicate with a numeric comparison
* Rename Comparable.quantity to Comparable.expression
* Comparable.expression can be a datetime.date

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* Increase minimum Legislice version to 0.4.1
* Remove `read_enactments` and `read_enactment`. Use Legislice's download client or schema instead.