Adds taxonomy and term templates

Introduces basic templates for taxonomy and term pages.

These templates provide a foundation for displaying taxonomies and terms,
including listing associated content.

layouts/_default/taxonomy.html

@@ -0,0 +1,23 @@
+{{- define "main" -}}
+{{ $taxonomyObject := .Data.Terms }}
+<div class="wrapper list-page">
+  <header class="header">
+    <h1 class="header-title center">{{ .Title }}</h1>
+  </header>
+  <main class="page-content" aria-label="Content">
+
+    {{ range $taxonomyObject.Alphabetical }}
+
+    <h2 class="post-year"><a href="{{ .Page.RelPermalink }}">{{ .Page.LinkTitle }}</a></h2>
+
+    {{ range .Pages }}
+
+    {{ partial "postCard" . }}
+
+    {{ end }}
+
+    {{ end }}
+
+  </main>
+</div>
+{{- end -}}

layouts/_default/term.html

@@ -0,0 +1,13 @@
+{{ define "main" }}
+<div class="wrapper list-page">
+  <header class="header">
+    <h1 class="header-title center">{{ .Title }}</h1>
+  </header>
+  <main class="page-content" aria-label="Content">
+    {{ .Content }}
+    {{ range .Pages }}
+    {{ partial "postCard" . }}
+    {{ end }}
+  </div>
+</main>
+{{ end }}