[SPARK-5052] Add common/base classes to fix guava methods signatures.

Fixes problems with incorrect method signatures related to shaded classes. For discussion see the jira issue.

Author: Elmer Garduno <elmerg@google.com>

Closes #3874 from elmer-garduno/fix_guava_signatures and squashes the following commits:

aa5d8e0 [Elmer Garduno] Unshade common/base[Function|Supplier] classes to fix guava methods signatures.

assembly/pom.xml

@@ -142,8 +142,10 @@
                   </includes>
                   <excludes>
                     <exclude>com/google/common/base/Absent*</exclude>
+                    <exclude>com/google/common/base/Function</exclude>
                     <exclude>com/google/common/base/Optional*</exclude>
                     <exclude>com/google/common/base/Present*</exclude>
+                    <exclude>com/google/common/base/Supplier</exclude>
                   </excludes>
                 </relocation>
               </relocations>

core/pom.xml

@@ -372,8 +372,10 @@
                   <artifact>com.google.guava:guava</artifact>
                   <includes>
                     <include>com/google/common/base/Absent*</include>
+                    <include>com/google/common/base/Function</include>
                     <include>com/google/common/base/Optional*</include>
                     <include>com/google/common/base/Present*</include>
+                    <include>com/google/common/base/Supplier</include>
                   </includes>
                 </filter>
               </filters>