Add Organizational event logging feature

This PR adds event/audit logging support for organizations.
By default this feature is disabled, since it does log a lot and adds
extra database transactions.

All events are touched except a few, since we do not support those
features (yet), like SSO for example.

This feature is tested with multiple clients and all database types.

Fixes #229

migrations/mysql/2022-10-18-170602_add_events/down.sql

@@ -0,0 +1 @@
+DROP TABLE event;

migrations/mysql/2022-10-18-170602_add_events/up.sql

@@ -0,0 +1,19 @@
+CREATE TABLE event (
+  uuid               CHAR(36)    NOT NULL PRIMARY KEY,
+  event_type         INTEGER     NOT NULL,
+  user_uuid          CHAR(36),
+  org_uuid           CHAR(36),
+  cipher_uuid        CHAR(36),
+  collection_uuid    CHAR(36),
+  group_uuid         CHAR(36),
+  org_user_uuid      CHAR(36),
+  act_user_uuid      CHAR(36),
+  device_type        INTEGER,
+  ip_address         TEXT,
+  event_date         DATETIME    NOT NULL,
+  policy_uuid        CHAR(36),
+  provider_uuid      CHAR(36),
+  provider_user_uuid CHAR(36),
+  provider_org_uuid  CHAR(36),
+  UNIQUE (uuid)
+);