[HUDI-159] Redesigning bundles for lighter-weight integrations

- Documented principles applied for redesign at packaging/README.md
 - No longer depends on incl commons-codec, commons-io, commons-pool, commons-dbcp, commons-lang, commons-logging, avro-mapred
 - Introduce new FileIOUtils & added checkstyle rule for illegal import of above
 - Parquet, Avro dependencies moved to provided scope to enable being picked up from Hive/Spark/Presto instead
 - Pickup jackson jars for Hive sync tool from HIVE_HOME & unbundling jackson everywhere
 - Remove hive-jdbc standalone jar from being bundled in Spark/Hive/Utilities bundles
 - 6.5x reduced number of classes across bundles

hudi-common/pom.xml

@@ -94,16 +94,6 @@
       <groupId>org.apache.avro</groupId>
       <artifactId>avro</artifactId>
     </dependency>
-    <dependency>
-      <groupId>org.apache.avro</groupId>
-      <artifactId>avro-mapred</artifactId>
-      <exclusions>
-        <exclusion>
-          <groupId>org.mortbay.jetty</groupId>
-          <artifactId>*</artifactId>
-        </exclusion>
-      </exclusions>
-    </dependency>
 
     <!-- Parquet -->
     <dependency>
@@ -111,12 +101,6 @@
       <artifactId>parquet-avro</artifactId>
     </dependency>
 
-    <!-- Apache Commons -->
-    <dependency>
-      <groupId>commons-codec</groupId>
-      <artifactId>commons-codec</artifactId>
-    </dependency>
-
     <!-- Httpcomponents -->
     <dependency>
       <groupId>org.apache.httpcomponents</groupId>