[HIVEMALL-269] Modified to use matrix4j for matrix module

## What changes were proposed in this pull request?

 Use matrix4j for matrix module

## What type of PR is it?

Hot Fix | Refactoring

## What is the Jira issue?

https://issues.apache.org/jira/browse/HIVEMALL-269

## How was this patch tested?

unit tests

## Checklist

(Please remove this section if not needed; check `x` for YES, blank for NO)

- [x] Did you apply source code formatter, i.e., `./bin/format_code.sh`, for your commit?
- [ ] Did you run system tests on Hive (or Spark)?

Author: Makoto Yui <myui@apache.org>

Closes #202 from myui/HIVEMALL-269.

core/pom.xml

@@ -16,7 +16,9 @@
   specific language governing permissions and limitations
   under the License.
 -->
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 
 	<parent>
@@ -83,6 +85,12 @@
 		</dependency>
 
 		<!-- compile scope -->
+		<dependency>
+			<groupId>io.github.myui</groupId>
+			<artifactId>matrix4j</artifactId>
+			<version>0.9.0</version>
+			<scope>compile</scope>
+		</dependency>
 		<dependency>
 			<!-- required for mixing client -->
 			<groupId>io.netty</groupId>
@@ -128,10 +136,10 @@
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
-		  <groupId>com.clearspring.analytics</groupId>
-		  <artifactId>stream</artifactId>
-		  <version>2.9.5</version>
-		  <scope>compile</scope>
+			<groupId>com.clearspring.analytics</groupId>
+			<artifactId>stream</artifactId>
+			<version>2.9.5</version>
+			<scope>compile</scope>
 		</dependency>
 
 		<!-- test scope -->