VTS integration framework initial refactor.

Bug=28004487

Commiting the integraton framework in the directory structure as
discussed offline.

Change-Id: I0314431e3b906a195290cd9b4630c93e07b494ca
diff --git a/utils/python/controllers/fastboot.py b/utils/python/controllers/fastboot.py
new file mode 100644
index 0000000..096dfae
--- /dev/null
+++ b/utils/python/controllers/fastboot.py
@@ -0,0 +1,70 @@
+#!/usr/bin/env python3.4
+#
+#   Copyright 2016 - The Android Open Source Project
+#
+#   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 subprocess import Popen, PIPE
+
+def exe_cmd(*cmds):
+    """Executes commands in a new shell. Directing stderr to PIPE.
+
+    This is fastboot's own exe_cmd because of its peculiar way of writing
+    non-error info to stderr.
+
+    Args:
+        cmds: A sequence of commands and arguments.
+
+    Returns:
+        The output of the command run.
+
+    Raises:
+        Exception is raised if an error occurred during the command execution.
+    """
+    cmd = ' '.join(cmds)
+    proc = Popen(cmd, stdout=PIPE, stderr=PIPE, shell=True)
+    (out, err) = proc.communicate()
+    if not err:
+        return out
+    return err
+
+class FastbootError(Exception):
+    """Raised when there is an error in fastboot operations."""
+
+class FastbootProxy():
+    """Proxy class for fastboot.
+
+    For syntactic reasons, the '-' in fastboot commands need to be replaced
+    with '_'. Can directly execute fastboot commands on an object:
+    >> fb = FastbootProxy(<serial>)
+    >> fb.devices() # will return the console output of "fastboot devices".
+    """
+    def __init__(self, serial=""):
+        self.serial = serial
+        if serial:
+            self.fastboot_str = "fastboot -s {}".format(serial)
+        else:
+            self.fastboot_str = "fastboot"
+
+    def _exec_fastboot_cmd(self, name, arg_str):
+        return exe_cmd(' '.join((self.fastboot_str, name, arg_str)))
+
+    def args(self, *args):
+        return exe_cmd(' '.join((self.fastboot_str,) + args))
+
+    def __getattr__(self, name):
+        def fastboot_call(*args):
+            clean_name = name.replace('_', '-')
+            arg_str = ' '.join(str(elem) for elem in args)
+            return self._exec_fastboot_cmd(clean_name, arg_str)
+        return fastboot_call