New target description + moving target stuff under "framework"

Changing the way target descriptions work from a static mapping to
something that is dynamically generated and is extensible via plugins.
Also moving core target implementation stuff under "framework".

wa/framework/execution.py

@@ -57,7 +57,6 @@ from wa.framework.exception import (WAError, ConfigError, TimeoutError,
 from wa.framework.plugin import Artifact
 from wa.framework.resource import ResourceResolver
 from wa.framework.target.info import TargetInfo
-from wa.framework.target.manager import TargetManager
 from wa.utils.misc import (ensure_directory_exists as _d, 
                            get_traceback, format_duration)
 from wa.utils.serializer import json
@@ -229,6 +228,30 @@ def _check_artifact_path(path, rootpath):
     return full_path
 
 
+class FakeTargetManager(object):
+    # TODO: this is a FAKE
+
+    def __init__(self, name, config):
+        self.device_name = name
+        self.device_config = config
+
+        from devlib import LocalLinuxTarget
+        self.target = LocalLinuxTarget({'unrooted': True})
+        
+    def get_target_info(self):
+        return TargetInfo(self.target)
+
+    def validate_runtime_parameters(self, params):
+        pass
+
+    def merge_runtime_parameters(self, params):
+        pass
+
+
+def init_target_manager(config):
+    return FakeTargetManager(config.device, config.device_config)
+
+
 class Executor(object):
     """
     The ``Executor``'s job is to set up the execution context and pass to a
@@ -274,8 +297,7 @@ class Executor(object):
         output.write_config(config)
 
         self.logger.info('Connecting to target')
-        target_manager = TargetManager(config.run_config.device,
-                                       config.run_config.device_config)
+        target_manager = init_target_manager(config.run_config)
         output.write_target_info(target_manager.get_target_info())
 
         self.logger.info('Initializing execution conetext')