add .yar extension to the following rules and add to indexes:

Email_fake_it_maintenance_bulletin
Email_generic_phishing.yar
Email_quota_limit_warning.yar

Signed-off-by: Ryan B <randomrhythm@rhythmengineering.com>

email_index.yar

@@ -10,3 +10,6 @@ include "./email/extortion_email.yar"
 include "./email/image.yar"
 include "./email/scam.yar"
 include "./email/urls.yar"
+include "./email/Email_fake_it_maintenance_bulletin.yar"
+include "./email/Email_generic_phishing.yar"
+include "./email/Email_quota_limit_warning.yar"

index.yar

@@ -27,6 +27,9 @@ include "./email/extortion_email.yar"
 include "./email/image.yar"
 include "./email/scam.yar"
 include "./email/urls.yar"
+include "./email/Email_fake_it_maintenance_bulletin.yar"
+include "./email/Email_generic_phishing.yar"
+include "./email/Email_quota_limit_warning.yar"
 include "./exploit_kits/EK_Angler.yar"
 include "./exploit_kits/EK_Blackhole.yar"
 include "./exploit_kits/EK_BleedingLife.yar"