massive refactoring to switch from camelCase to snake_case:

historically, Libervia (SàT before) was using camelCase as allowed by PEP8 when using a
pre-PEP8 code, to use the same coding style as in Twisted.

However, snake_case is more readable and it's better to follow PEP8 best practices, so it
has been decided to move on full snake_case. Because Libervia has a huge codebase, this
ended with a ugly mix of camelCase and snake_case.

To fix that, this patch does a big refactoring by renaming every function and method
(including bridge) that are not coming from Twisted or Wokkel, to use fully snake_case.

This is a massive change, and may result in some bugs.

sat/plugins/plugin_misc_debug.py

@@ -40,15 +40,15 @@ class Debug(object):
     def __init__(self, host):
         log.info(_("Plugin Debug initialization"))
         self.host = host
-        host.bridge.addMethod(
-            "debugFakeSignal",
+        host.bridge.add_method(
+            "debug_signal_fake",
             ".plugin",
             in_sign="sss",
             out_sign="",
-            method=self._fakeSignal,
+            method=self._fake_signal,
         )
 
-    def _fakeSignal(self, signal, arguments, profile_key):
+    def _fake_signal(self, signal, arguments, profile_key):
         """send a signal from backend
 
         @param signal(str): name of the signal
@@ -58,6 +58,6 @@ class Debug(object):
         args = json.loads(arguments)
         method = getattr(self.host.bridge, signal)
         if profile_key != C.PROF_KEY_NONE:
-            profile = self.host.memory.getProfileName(profile_key)
+            profile = self.host.memory.get_profile_name(profile_key)
             args.append(profile)
         method(*args)