feat: breakout formatters into their own plugin-like module to ease additonal formatters

matrix_webhook/formatters/github.py

@@ -1,8 +1,4 @@
-import plugins
-
-
-@plugins.register
-def github(data, headers):
+def formatter(data, headers):
     """Pretty-print a github notification."""
     # TODO: Write nice useful formatters. This is only an example.
     if headers["X-GitHub-Event"] == "push":

matrix_webhook/formatters/grafana.py

@@ -1,8 +1,4 @@
-import plugins
-
-
-@plugins.register
-def grafana(data, headers):
+def formatter(data, headers):
     """Pretty-print a grafana notification."""
     text = ""
     if "title" in data:

matrix_webhook/formatters/pingdom.py

@@ -1,8 +1,7 @@
-import plugins
+from datetime import datetime
 
 
-@plugin.register
-def pingdom(data, headers):
+def formatter(data, headers):
     """Pretty-print a pingdom notification."""
     #JSON data formatting was obtained from https://www.pingdom.com/resources/webhooks/
     check_id = data["check_id"]