Add get quote API to wallet + check proof states in batches (#637)

* add get quote api to wallet

* wrong string

* test before pushing

* fix tests for deprecated api only

* sigh

tests/test_wallet_cli.py

@@ -110,6 +110,9 @@ def test_balance(cli_prefix):
 
 @pytest.mark.skipif(is_regtest, reason="only works with FakeWallet")
 def test_invoice(mint, cli_prefix):
+    if settings.debug_mint_only_deprecated:
+        pytest.skip("only works with v1 API")
+
     runner = CliRunner()
     result = runner.invoke(
         cli,