JAVA-15787 Created new messaging-modules and saas-modules

- Moved jgroups, rabbitmq, spring-amqp, spring-apache-camel, spring-jms to messaging-modules
- Moved twilio, twitter4j, strip to saas-modules
- Renamed existing saas to jira-rest-integration

messaging-modules/jgroups/src/main/resources/logback.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<configuration>
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
+            </pattern>
+        </encoder>
+    </appender>
+
+    <root level="INFO">
+        <appender-ref ref="STDOUT" />
+    </root>
+</configuration>

messaging-modules/jgroups/src/main/resources/udp.xml

@@ -0,0 +1,48 @@
+<config xmlns="urn:org:jgroups"
+        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+        xsi:schemaLocation="urn:org:jgroups http://www.jgroups.org/schema/jgroups.xsd">
+    <UDP
+         mcast_port="${jgroups.udp.mcast_port:45588}"
+         ip_ttl="4"
+         tos="8"
+         ucast_recv_buf_size="5M"
+         ucast_send_buf_size="5M"
+         mcast_recv_buf_size="5M"
+         mcast_send_buf_size="5M"
+         max_bundle_size="64K"
+         enable_diagnostics="true"
+         thread_naming_pattern="cl"
+
+         thread_pool.min_threads="0"
+         thread_pool.max_threads="20"
+         thread_pool.keep_alive_time="30000"/>
+
+    <PING />
+    <MERGE3 max_interval="30000"
+            min_interval="10000"/>
+    <FD_SOCK/>
+    <FD_ALL/>
+    <VERIFY_SUSPECT timeout="1500"  />
+    <BARRIER />
+    <pbcast.NAKACK2 xmit_interval="500"
+                    xmit_table_num_rows="100"
+                    xmit_table_msgs_per_row="2000"
+                    xmit_table_max_compaction_time="30000"
+                    use_mcast_xmit="false"
+                    discard_delivered_msgs="true"/>
+    <UNICAST3 xmit_interval="500"
+              xmit_table_num_rows="100"
+              xmit_table_msgs_per_row="2000"
+              xmit_table_max_compaction_time="60000"
+              conn_expiry_timeout="0"/>
+    <pbcast.STABLE desired_avg_gossip="50000"
+                   max_bytes="4M"/>
+    <pbcast.GMS print_local_addr="true" join_timeout="2000"/>
+    <UFC max_credits="2M"
+         min_threshold="0.4"/>
+    <MFC max_credits="2M"
+         min_threshold="0.4"/>
+    <FRAG2 frag_size="60K"  />
+    <RSVP resend_interval="2000" timeout="10000"/>
+    <pbcast.STATE_TRANSFER />
+</config>