chore: Rename Projects to Templates (#880)

Customer feedback indicated projects was a confusing name.
After querying the team internally, it seemed unanimous
that it is indeed a confusing name.

Here's for a lil less confusion @ashmeer7 🥂

cli/templateplan.go

@@ -0,0 +1,16 @@
+package cli
+
+import (
+	"github.com/spf13/cobra"
+)
+
+func templatePlan() *cobra.Command {
+	return &cobra.Command{
+		Use:   "plan <directory>",
+		Args:  cobra.MinimumNArgs(1),
+		Short: "Plan a template update from the current directory",
+		RunE: func(cmd *cobra.Command, args []string) error {
+			return nil
+		},
+	}
+}