CollReduce and KVReduce protocols (#961)

Fixes #927

---------

Co-authored-by: Noah Bogart <noah.bogart@hey.com>

Author: chrisrink10

CHANGELOG.md

@@ -5,6 +5,9 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+### Added
+ * Added the `CollReduce` and `KVReduce` protocols in `basilisp.core.protocols` and implemented `reduce` in terms of those protocols (#927)
+
 ### Changed
  * Improved on the nREPL server exception messages by matching that of the REPL user friendly format (#968)
 

Makefile

@@ -1,6 +1,10 @@
 DOCSOURCEDIR = "./docs"
 DOCBUILDDIR = "./docs/_build"
 
+.PHONY: clean-docs
+clean-docs:
+	@rm -rf ./docs/build
+
 .PHONY: docs
 docs:
 	@poetry run sphinx-build -M html "$(DOCSOURCEDIR)" "$(DOCBUILDDIR)"

docs/api/core/protocols.rst

@@ -0,0 +1,10 @@
+basilisp.core.protocols
+=======================
+
+.. toctree::
+   :maxdepth: 2
+   :caption: Contents:
+
+.. autonamespace:: basilisp.core.protocols
+   :members:
+   :undoc-members:

docs/interfaces.rst

@@ -27,5 +27,5 @@ In day-to-day usage, you will not typically need to use these interfaces, but th
 .. automodule:: basilisp.lang.interfaces
    :members:
    :undoc-members:
-   :exclude-members: seq_equals
+   :exclude-members: ReduceFunction, seq_equals
    :show-inheritance: