Loads of changes!

* Added conversion plugins (API might change!)
* Added conversion to the analysis pipeline
* Changed behaviour of --default-plugins (it adds conversion plugins regardless)
* Added emotionModel [sic] and emotionConversion models

//TODO add conversion tests
//TODO add conversion to docs

tests/plugins/sleep_plugin/sleep.py

@@ -0,0 +1,11 @@
+from senpy.plugins import SenpyPlugin
+from time import sleep
+
+
+class SleepPlugin(SenpyPlugin):
+    def activate(self, *args, **kwargs):
+        sleep(self.timeout)
+
+    def analyse_entry(self, entry, params):
+        sleep(float(params.get("timeout", self.timeout)))
+        yield entry

tests/plugins/sleep_plugin/sleep.senpy

@@ -0,0 +1,16 @@
+{
+    "name": "Sleep",
+    "module": "sleep",
+    "description": "I am dummy",
+    "author": "@balkian",
+    "version": "0.1",
+    "timeout": 0.5,
+    "extra_params": {
+        "timeout": {
+            "@id": "timeout_sleep",
+            "aliases": ["timeout", "to"],
+            "required": false,
+            "default": 0
+        }
+     }
+}