[SPARK-20614][PROJECT INFRA] Use the same log4j configuration with Jenkins in AppVeyor

## What changes were proposed in this pull request?

Currently, there are flooding logs in AppVeyor (in the console). This has been fine because we can download all the logs. However, (given my observations so far), logs are truncated when there are too many. It has been grown recently and it started to get truncated. For example, see  https://ci.appveyor.com/project/ApacheSoftwareFoundation/spark/build/1209-master

Even after the log is downloaded, it looks truncated as below:

```
[00:44:21] 17/05/04 18:56:18 INFO TaskSetManager: Finished task 197.0 in stage 601.0 (TID 9211) in 0 ms on localhost (executor driver) (194/200)
[00:44:21] 17/05/04 18:56:18 INFO Executor: Running task 199.0 in stage 601.0 (TID 9213)
[00:44:21] 17/05/04 18:56:18 INFO Executor: Finished task 198.0 in stage 601.0 (TID 9212). 2473 bytes result sent to driver
...
```

Probably, it looks better to use the same log4j configuration that we are using for SparkR tests in Jenkins(please see https://github.com/apache/spark/blob/fc472bddd1d9c6a28e57e31496c0166777af597e/R/run-tests.sh#L26 and https://github.com/apache/spark/blob/fc472bddd1d9c6a28e57e31496c0166777af597e/R/log4j.properties)
```
# Set everything to be logged to the file target/unit-tests.log
log4j.rootCategory=INFO, file
log4j.appender.file=org.apache.log4j.FileAppender
log4j.appender.file.append=true
log4j.appender.file.file=R/target/unit-tests.log
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%d{yy/MM/dd HH:mm:ss.SSS} %t %p %c{1}: %m%n

# Ignore messages below warning level from Jetty, because it's a bit verbose
log4j.logger.org.eclipse.jetty=WARN
org.eclipse.jetty.LEVEL=WARN
```

## How was this patch tested?

Manually tested with spark-test account
  - https://ci.appveyor.com/project/spark-test/spark/build/672-r-log4j (there is an example for flaky test here)
  - https://ci.appveyor.com/project/spark-test/spark/build/673-r-log4j (I re-ran the build).

Author: hyukjinkwon <gurwls223@gmail.com>

Closes #17873 from HyukjinKwon/appveyor-reduce-logs.

appveyor.yml

@@ -49,7 +49,7 @@ build_script:
   - cmd: mvn -DskipTests -Psparkr -Phive -Phive-thriftserver package
 
 test_script:
-  - cmd: .\bin\spark-submit2.cmd --conf spark.hadoop.fs.defaultFS="file:///" R\pkg\tests\run-all.R
+  - cmd: .\bin\spark-submit2.cmd --driver-java-options "-Dlog4j.configuration=file:///%CD:\=/%/R/log4j.properties" --conf spark.hadoop.fs.defaultFS="file:///" R\pkg\tests\run-all.R
 
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