[HUDI-1089] Refactor hudi-client to support multi-engine (#1827)

- This change breaks `hudi-client` into `hudi-client-common` and `hudi-spark-client` modules 
- Simple usages of Spark using jsc.parallelize() has been redone using EngineContext#map, EngineContext#flatMap etc
- Code changes in the PR, break classes into `BaseXYZ` parent classes with no spark dependencies living in `hudi-client-common`
- Classes on `hudi-spark-client` are named `SparkXYZ` extending the parent classes with all the Spark dependencies
- To simplify/cleanup, HoodieIndex#fetchRecordLocation has been removed and its usages in tests replaced with alternatives

Co-authored-by: Vinoth Chandar <vinoth@apache.org>

packaging/hudi-utilities-bundle/pom.xml

@@ -66,7 +66,8 @@
               <artifactSet>
                 <includes>
                   <include>org.apache.hudi:hudi-common</include>
-                  <include>org.apache.hudi:hudi-client</include>
+                  <include>org.apache.hudi:hudi-client-common</include>
+                  <include>org.apache.hudi:hudi-spark-client</include>
                   <include>org.apache.hudi:hudi-utilities_${scala.binary.version}</include>
                   <include>org.apache.hudi:hudi-spark_${scala.binary.version}</include>
                   <include>org.apache.hudi:hudi-hive-sync</include>
@@ -211,7 +212,12 @@
     </dependency>
     <dependency>
       <groupId>org.apache.hudi</groupId>
-      <artifactId>hudi-client</artifactId>
+      <artifactId>hudi-client-common</artifactId>
+      <version>${project.version}</version>
+    </dependency>
+    <dependency>
+      <groupId>org.apache.hudi</groupId>
+      <artifactId>hudi-spark-client</artifactId>
       <version>${project.version}</version>
     </dependency>
     <dependency>