Add the event modules to the package

misp_modules/modules/__init__.py

@@ -1,3 +1,4 @@
 from .expansion import *
 from .import_mod import *
 from .export_mod import *
+from .event import *

misp_modules/modules/event/__init__.py

@@ -0,0 +1 @@
+__all__ = ['sign', 'verify']