Add FreeBSD installation instructions

FreeBSD ports for OpenSearch and OpenSearch-Dashboards have been
committed to the FreeBSD ports tree, and packages will be available soon
to FreeBSD users through the regular package management system.

Add FreeBSD to the list of platforms.  Because installation instruction
do not change based on the architecture, add a "All" architecture to
avoid duplicating the same information multiple times.

Also include a link to the port page on FreshPorts which allow to
"conveniently" see the port history (in a more convenient way than
cgit).

While here, adjust the list of all artifacts to order them
alphabetically in the artifacts directory.

_artifacts/opensearch-1.0/all/opensearch-1.0.1-freebsd-all.markdown

@@ -0,0 +1,12 @@
+---
+role: daemon
+artifact_id: opensearch
+version: 1.0.1
+platform: freebsd
+architecture: all
+slug: opensearch-1.0.1-freebsd-all
+category: opensearch
+type: pkg
+freebsd_package_name: opensearch
+link: https://www.freshports.org/textproc/opensearch
+---

_artifacts/opensearch-1.0/all/opensearch-dashboards-1.0.1-freebsd-all.markdown

@@ -0,0 +1,13 @@
+---
+role: ui
+title: OpenSearch Dashboards
+artifact_id: opensearch-dashboards
+architecture: all
+platform: freebsd
+type: pkg
+category: opensearch-dashboards
+slug: opensearch-dashboards-1.0.1-freebsd-all
+version: 1.0.1
+freebsd_package_name: opensearch-dashboards
+link: https://www.freshports.org/textproc/opensearch-dashboards
+---

_layouts/versions.html

@@ -19,6 +19,7 @@
   platforms:
     windows: "Windows"
     linux: "Linux"
+    freebsd: "FreeBSD"
     macos: macOS
     java: "Java"
     docker: Docker
@@ -31,6 +32,7 @@
     jar: ".jar"
     docker_hub: 'Dockerfile'
   architectures:
+    all: "All"
     arm64: "ARM64"
     x64: "x64"
     jvm: Java Virtual Machine
@@ -46,11 +48,13 @@
   - x64
   - arm64
   - x86
+  - all
   - jvm
 
 platform_order:
   - linux
   - docker
+  - freebsd
   - macos
   - windows
   - java
@@ -193,6 +197,13 @@ <h3 class="artifact-name" id="{{component.artifact}}">{{ name_pretty }}</h3>
                 class="cta">Download</a> </div>{% endcapture %}
               {% assign artifact_extras = artifact_extras | append: artifact_extra %}
             {% endif %}
+            {% if details.freebsd_package_name %}
+              {% capture artifact_extra %}<div class="extra_links extra_{{artifact_id}}">
+                <p>Install from FreeBSD packages:</p>
+                <pre># pkg install {{details.freebsd_package_name}}</pre>
+                </div>{% endcapture %}
+              {% assign artifact_extras = artifact_extras | append: artifact_extra %}
+            {% endif %}
             {% if details.link %}
               {% capture artifact_extra %}<div class="extra_links extra_{{artifact_id}}">
                 <a href="{{details.link}}" target="_blank" class="cta">Get it</a>
@@ -271,4 +282,4 @@ <h3 class="artifact-name" id="{{component.artifact}}">{{ name_pretty }}</h3>
 {% endcapture %}
 
 {% include copy_banner.html %}
-{% include base_3col.html %}
+{% include base_3col.html %}

artifacts/index.html

@@ -8,10 +8,10 @@
   <ul class="tree">
     {% for id_group in artifacts_by_id %}
         <li id="{{id_group.name}}">{{ id_group.name }}
-        {% assign artifacts_by_platform = id_group.items | group_by: "platform" %}
+        {% assign artifacts_by_platform = id_group.items | sort: "platform" | group_by: "platform" %}
         <ul class="tree">
         {% for platform_group in artifacts_by_platform %}    
-          {% assign architecture_group = platform_group.items | group_by: "architecture" %}
+          {% assign architecture_group = platform_group.items | sort: "name" | group_by: "architecture" %}
           {% for artifacts in architecture_group %}
             <li>{{ platform_group.name }}-{{ artifacts.name }}
               <ul class="tree">