Refactor INO to CPP converter

tests/ino2cpp/basic/basic.ino

@@ -0,0 +1,18 @@
+
+struct MyItem {
+   byte  foo[50];
+   int   bar;
+};
+
+void setup() {
+    struct MyItem item1;
+    myFunction(&item1);
+}
+
+void loop() {
+
+}
+
+void myFunction(struct MyItem *item) {
+
+}

tests/ino2cpp/multifiles/bar.ino

@@ -0,0 +1,3 @@
+void barFunc () { // my comment
+
+}

tests/ino2cpp/multifiles/foo.pde

@@ -0,0 +1,13 @@
+
+void setup() {
+    barFunc();
+    fooFunc();
+}
+
+void loop() {
+
+}
+
+char* fooFunc() {
+
+}

tests/test_ino2cpp.py

@@ -0,0 +1,41 @@
+# Copyright 2014-present PlatformIO <contact@platformio.org>
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from os import listdir
+from os.path import dirname, isdir, join, normpath
+
+import pytest
+
+from platformio import util
+
+
+def pytest_generate_tests(metafunc):
+    if "piotest_dir" not in metafunc.fixturenames:
+        return
+    test_dir = normpath(join(dirname(__file__), "ino2cpp"))
+    test_dirs = []
+    for name in listdir(test_dir):
+        if isdir(join(test_dir, name)):
+            test_dirs.append(join(test_dir, name))
+    test_dirs.sort()
+    metafunc.parametrize("piotest_dir", test_dirs)
+
+
+@pytest.mark.examples
+def test_ci(platformio_setup, piotest_dir):
+    result = util.exec_command(
+        ["platformio", "--force", "ci", piotest_dir, "-b", "uno"]
+    )
+    if result['returncode'] != 0:
+        pytest.fail(result)