Qualification tool: Catch exception for invalid regex patterns

[nartal1]

This is a small PR to catch exception when invalid regex pattern is provided while filtering by application name.
Earlier we used to get exception for this command:

$ java -cp /home/spark-rapids/jars/rapids-4-spark-tools_2.12-21.12.0-SNAPSHOT.jar:/home/spark/spark-3.1.1-bin-hadoop3.2/jars/* com.nvidia.spark.rapids.tool.qualification.QualificationMain  -a *spark /home/spark-eventlog/spark-eventlog-3.x

Exception in thread "main" java.util.regex.PatternSyntaxException: Dangling meta character '*' near index 0
*spark
^
        at java.util.regex.Pattern.error(Pattern.java:1969)
        at java.util.regex.Pattern.sequence(Pattern.java:2137)
        at java.util.regex.Pattern.expr(Pattern.java:2010)
        at java.util.regex.Pattern.compile(Pattern.java:1702)
        at java.util.regex.Pattern.<init>(Pattern.java:1352)
        at java.util.regex.Pattern.compile(Pattern.java:1028)

This PR prints message and exits.

21/10/28 15:56:57 ERROR AppFilterImpl:  *spark is not a valid regex pattern. Please provide correct regex pattern.

[nartal1]

build

[tgravescs]

build