Restructure omni services and add Chatwoot research snapshot

research/chatwoot/spec/fixtures/files/only_text.eml

@@ -0,0 +1,13 @@
+Date: Wed, 23 Feb 2022 13:14:10 +0530
+From: text@example.com
+To: care@example.com
+Message-ID: <6215e5ca3e3b2_10bc6197e4224d1@tejaswinis-MacBook-Pro.local.mail>
+In-Reply-To:
+Subject: test text only mail
+Mime-Version: 1.0
+Content-Type: text/plain;
+ charset=UTF-8
+Content-Transfer-Encoding: 7bit
+x-original-to:
+
+text only mail