[SPARK-19117][SPARK-18922][TESTS] Fix the rest of flaky, newly introduced and...

[SPARK-19117][SPARK-18922][TESTS] Fix the rest of flaky, newly introduced and missed test failures on Windows

## What changes were proposed in this pull request?

**Failed tests**

```
org.apache.spark.sql.hive.execution.HiveQuerySuite:
 - transform with SerDe3 *** FAILED ***
 - transform with SerDe4 *** FAILED ***
```

```
org.apache.spark.sql.hive.execution.HiveDDLSuite:
 - create hive serde table with new syntax *** FAILED ***
 - add/drop partition with location - managed table *** FAILED ***
```

```
org.apache.spark.sql.hive.ParquetMetastoreSuite:
 - Explicitly added partitions should be readable after load *** FAILED ***
 - Non-partitioned table readable after load *** FAILED ***
```

**Aborted tests**

```
Exception encountered when attempting to run a suite with class name: org.apache.spark.sql.hive.execution.HiveSerDeSuite *** ABORTED *** (157 milliseconds)
   org.apache.spark.sql.AnalysisException: LOAD DATA input path does not exist: C:projectssparksqlhive   argetscala-2.11   est-classesdatafilessales.txt;
```

**Flaky tests(failed 9ish out of 10)**

```
org.apache.spark.scheduler.SparkListenerSuite:
 - local metrics *** FAILED ***
```

## How was this patch tested?

Manually tested via AppVeyor.

**Failed tests**

```
org.apache.spark.sql.hive.execution.HiveQuerySuite:
 - transform with SerDe3 !!! CANCELED !!! (0 milliseconds)
 - transform with SerDe4 !!! CANCELED !!! (0 milliseconds)
```

```
org.apache.spark.sql.hive.execution.HiveDDLSuite:
 - create hive serde table with new syntax (1 second, 672 milliseconds)
 - add/drop partition with location - managed table (2 seconds, 391 milliseconds)
```

```
org.apache.spark.sql.hive.ParquetMetastoreSuite:
 - Explicitly added partitions should be readable after load (609 milliseconds)
 - Non-partitioned table readable after load (344 milliseconds)
```

**Aborted tests**

```
spark.sql.hive.execution.HiveSerDeSuite:
 - Read with RegexSerDe (2 seconds, 142 milliseconds)
 - Read and write with LazySimpleSerDe (tab separated) (2 seconds)
 - Read with AvroSerDe (1 second, 47 milliseconds)
 - Read Partitioned with AvroSerDe (1 second, 422 milliseconds)
```

**Flaky tests (failed 9ish out of 10)**

```
org.apache.spark.scheduler.SparkListenerSuite:
 - local metrics (4 seconds, 562 milliseconds)
```

Author: hyukjinkwon <gurwls223@gmail.com>

Closes #16586 from HyukjinKwon/set-path-appveyor.