feat(templates): More package templates, template management start

commands/show.py

@@ -0,0 +1,19 @@
+from typing import Literal
+
+from config.dtype import ArchMgrConfig
+from templates import ArchMgrTemplates
+
+
+# TODO: Templates data
+def show(
+    config: ArchMgrConfig, spec: ArchMgrTemplates, kind: Literal["bundle"], arg: str
+):
+    """Show details / information about things like contents pkg bundles
+
+    Args:
+        config: The configuration
+        spec: The archmgr templates that were loaded
+        kind: The type of information to get
+        arg: The arg for the command (e.g. bundle name)
+    """
+    pass