feat: Add macOS Unified Logging Receiver - Config/Factory (#44100)

<!--Ex. Fixing a bug - Describe the bug and how this fixes the issue.
Ex. Adding a feature - Explain what this achieves.-->
#### Description
Adds the factory and configuration implementation for the macOS Unified
Logging receiver. This PR follows the steps outlined in
`CONTRIBUTING.md` to split up the PRs for a new component.

<!-- Issue number (e.g. #1234) or full URL to issue, if applicable. -->
#### Link to tracking issue
#44089 

<!--Describe what testing was performed and which tests were added.-->
#### Testing
Unit tests for the configuration and factory.

<!--Describe the documentation added.-->
#### Documentation
The receiver is completely documented in `README.md`.

<!--Please delete paragraphs that you did not use before submitting.-->

Author: Caleb-Hurshman

.chloggen/config.yaml

@@ -275,6 +275,7 @@ components:
     - receiver/kubeletstats
     - receiver/libhoney
     - receiver/loki
+    - receiver/macosunifiedlogging
     - receiver/memcached
     - receiver/mongodb
     - receiver/mongodbatlas

.chloggen/feat_macosunifiedloggingreceiver.yaml

@@ -0,0 +1,27 @@
+# Use this changelog template to create an entry for release notes.
+
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: new_component
+
+# The name of the component, or a single word describing the area of concern, (e.g. receiver/filelog)
+component: receiver/macosunifiedlogging
+
+# A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: Add a new receiver for macOS Unified Logging.
+
+# Mandatory: One or more tracking issues related to the change. You can use the PR number here if no issue exists.
+issues: [44089]
+
+# (Optional) One or more lines of additional information to render under the primary note.
+# These lines will be padded with 2 spaces and then inserted directly into the document.
+# Use pipe (|) for multiline entries.
+subtext:
+
+# If your change doesn't affect end users or the exported elements of any package,
+# you should instead start your pull request title with [chore] or use the "Skip Changelog" label.
+# Optional: The change log or logs in which this entry should be included.
+# e.g. '[user]' or '[user, api]'
+# Include 'user' if the change is relevant to end users.
+# Include 'api' if there is a change to a library API.
+# Default: '[user]'
+change_logs: [user]

.codecov.yml

@@ -780,6 +780,10 @@ component_management:
     name: receiver_loki
     paths:
     - receiver/lokireceiver/**
+  - component_id: receiver_macosunifiedlogging
+    name: receiver_macosunifiedlogging
+    paths:
+    - receiver/macosunifiedloggingreceiver/**
   - component_id: receiver_memcached
     name: receiver_memcached
     paths:

.github/CODEOWNERS

@@ -295,6 +295,7 @@ receiver/kafkareceiver/                                          @open-telemetry
 receiver/kubeletstatsreceiver/                                   @open-telemetry/collector-contrib-approvers @dmitryax @TylerHelmuth @ChrsMark
 receiver/libhoneyreceiver/                                       @open-telemetry/collector-contrib-approvers @TylerHelmuth @mterhar
 receiver/lokireceiver/                                           @open-telemetry/collector-contrib-approvers @mar4uk
+receiver/macosunifiedloggingreceiver/                            @open-telemetry/collector-contrib-approvers @Caleb-Hurshman
 receiver/memcachedreceiver/                                      @open-telemetry/collector-contrib-approvers @jsirianni
 receiver/mongodbatlasreceiver/                                   @open-telemetry/collector-contrib-approvers @justinianvoss22
 receiver/mongodbreceiver/                                        @open-telemetry/collector-contrib-approvers @justinianvoss22

.github/ISSUE_TEMPLATE/beta_stability.yaml

@@ -295,6 +295,7 @@ body:
       - receiver/kubeletstats
       - receiver/libhoney
       - receiver/loki
+      - receiver/macosunifiedlogging
       - receiver/memcached
       - receiver/mongodb
       - receiver/mongodbatlas

.github/ISSUE_TEMPLATE/bug_report.yaml

@@ -298,6 +298,7 @@ body:
       - receiver/kubeletstats
       - receiver/libhoney
       - receiver/loki
+      - receiver/macosunifiedlogging
       - receiver/memcached
       - receiver/mongodb
       - receiver/mongodbatlas

.github/ISSUE_TEMPLATE/feature_request.yaml

@@ -292,6 +292,7 @@ body:
       - receiver/kubeletstats
       - receiver/libhoney
       - receiver/loki
+      - receiver/macosunifiedlogging
       - receiver/memcached
       - receiver/mongodb
       - receiver/mongodbatlas

.github/ISSUE_TEMPLATE/other.yaml

@@ -292,6 +292,7 @@ body:
       - receiver/kubeletstats
       - receiver/libhoney
       - receiver/loki
+      - receiver/macosunifiedlogging
       - receiver/memcached
       - receiver/mongodb
       - receiver/mongodbatlas

.github/ISSUE_TEMPLATE/unmaintained.yaml

@@ -297,6 +297,7 @@ body:
       - receiver/kubeletstats
       - receiver/libhoney
       - receiver/loki
+      - receiver/macosunifiedlogging
       - receiver/memcached
       - receiver/mongodb
       - receiver/mongodbatlas

.github/component_labels.txt

@@ -276,6 +276,7 @@ receiver/kafkareceiver receiver/kafka
 receiver/kubeletstatsreceiver receiver/kubeletstats
 receiver/libhoneyreceiver receiver/libhoney
 receiver/lokireceiver receiver/loki
+receiver/macosunifiedloggingreceiver receiver/macosunifiedlogging
 receiver/memcachedreceiver receiver/memcached
 receiver/mongodbatlasreceiver receiver/mongodbatlas
 receiver/mongodbreceiver receiver/mongodb