HUDI-123 Rename code packages/constants to org.apache.hudi (#830)

- Rename com.uber.hoodie to org.apache.hudi
- Flag to pass com.uber.hoodie Input formats for hoodie-sync
- Works with HUDI demo. 
- Also tested for backwards compatibility with datasets built by com.uber.hoodie packages
- Migration guide : https://cwiki.apache.org/confluence/display/HUDI/Migration+Guide+From+com.uber.hoodie+to+org.apache.hudi

hudi-common/src/test/resources/complex-test-evolved.avsc

@@ -0,0 +1,17 @@
+{
+  "namespace": "example.avro",
+  "type": "record",
+  "name": "User",
+  "fields": [
+    {"name": "field1", "type": ["null", "string"], "default": null},
+    {"name": "field2", "type": ["null", "string"], "default": null},
+    {"name": "name", "type": ["null", "string"], "default": null},
+    {"name": "favoriteIntNumber",  "type": ["null", "int"], "default": null},
+    {"name": "favoriteNumber",  "type": ["null", "long"], "default": null},
+    {"name": "favoriteFloatNumber",  "type": ["null", "float"], "default": null},
+    {"name": "favoriteDoubleNumber",  "type": ["null", "double"], "default": null},
+    {"name": "tags", "type": ["null", {"values": ["null", {"fields": [{"default": null, "type": ["null", "string"], "name": "item1"}, {"default": null, "type": ["null", "string"], "name": "item2"} ], "type": "record", "name": "tagsMapItems"} ], "type": "map"} ], "default": null},
+    {"default": null, "name": "testNestedRecord", "type": ["null", {"fields": [{"default": null, "name": "isAdmin", "type": ["null", "boolean"] }, {"default": null, "name": "userId", "type": ["null", "string"] } ], "name": "notes", "type": "record"}]},
+    {"default": null, "name": "stringArray", "type": ["null", {"items": "string", "type": "array"}]}
+  ]
+}

hudi-common/src/test/resources/log4j-surefire-quiet.properties

@@ -0,0 +1,23 @@
+###
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+###
+log4j.rootLogger=WARN, A1
+# A1 is set to be a ConsoleAppender.
+log4j.appender.A1=org.apache.log4j.ConsoleAppender
+# A1 uses PatternLayout.
+log4j.appender.A1.layout=org.apache.log4j.PatternLayout
+log4j.appender.A1.layout.ConversionPattern=[%-5p] %d %c %x - %m%n

hudi-common/src/test/resources/log4j-surefire.properties

@@ -0,0 +1,27 @@
+###
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+###
+log4j.rootLogger=WARN, A1
+log4j.category.com.uber=INFO
+log4j.category.com.uber.hoodie.table.log=WARN
+log4j.category.com.uber.hoodie.common.util=WARN
+log4j.category.org.apache.parquet.hadoop=WARN
+# A1 is set to be a ConsoleAppender.
+log4j.appender.A1=org.apache.log4j.ConsoleAppender
+# A1 uses PatternLayout.
+log4j.appender.A1.layout=org.apache.log4j.PatternLayout
+log4j.appender.A1.layout.ConversionPattern=%-4r [%t] %-5p %c %x - %m%n

hudi-common/src/test/resources/simple-test-evolved.avsc

@@ -0,0 +1,13 @@
+{
+"namespace": "example.avro",
+ "type": "record",
+ "name": "User",
+ "fields": [
+     {"name": "field1", "type": ["null", "string"], "default": null},
+     {"name": "field2", "type": ["null", "string"], "default": null},
+     {"name": "name", "type": ["null", "string"], "default": null},
+     {"name": "favorite_number",  "type": ["null", "long"], "default": null},
+     {"name": "favorite_color", "type": ["null", "string"], "default": null},
+     {"name": "favorite_movie", "type": ["null", "string"], "default": null}
+ ]
+}

hudi-common/src/test/resources/simple-test.avsc

@@ -0,0 +1,10 @@
+{
+"namespace": "example.avro",
+ "type": "record",
+ "name": "User",
+ "fields": [
+     {"name": "name", "type": "string"},
+     {"name": "favorite_number",  "type": "int"},
+     {"name": "favorite_color", "type": "string"}
+ ]
+}