feat: Begins work on supporting toml for configuration.

Tests/CliClientTests/Resources/.hparc

@@ -0,0 +1,15 @@
+{
+  "HPA_TEMPLATE_VERSION" : "main",
+  "HPA_TEMPLATE_DIR" : "/path/to/local/template",
+  "HPA_PLAYBOOK_DIR" : "/path/to/playbook",
+  "HPA_DEFAULT_VAULT_ARGS" : [
+    "--vault-id=myId@$SCRIPTS/vault-gopass-client"
+  ],
+  "HPA_TEMPLATE_REPO" : "https://git.example.com/consult-template.git",
+  "HPA_DEFAULT_PLAYBOOK_ARGS" : [
+    "--tags",
+    "debug"
+  ],
+  "HPA_DEFAULT_VAULT_ENCRYPT_ID" : "myId",
+  "HPA_DEFAULT_INVENTORY" : "/path/to/inventory.ini"
+}