feat(sops): introduce sops plugin

plugins/sops/sops.plugin.zsh

@@ -0,0 +1,23 @@
+# Completion
+if (( ! $+commands[sops] )); then
+  return
+fi
+
+_sops() {
+  local -a opts
+  local cur
+  cur=${words[-1]}
+  if [[ "$cur" == "-"* ]]; then
+    opts=("${(@f)$(${words[@]:0:#words[@]-1} ${cur} --generate-shell-completion)}")
+  else
+    opts=("${(@f)$(${words[@]:0:#words[@]-1} --generate-shell-completion)}")
+  fi
+
+  if [[ "${opts[1]}" != "" ]]; then
+    _describe 'values' opts
+  else
+    _files
+  fi
+}
+
+compdef _sops sops