Add config option to result pooling

[romanodanilo]

Description

Addressing https://github.com/asam-ev/qc-framework/issues/33 Improve result pooling by

• Adding the option to read configuration file and select which checker to read with which order
• Handle colliding names by appending 0-based CheckerBundle occurence in case of repeated CheckerBundle names
• Filter checker results issues using minLevel and maxLevel specified in each checker config

Now the ResultPooling interface is:

Usage of ResultPooling:

Run the application to summarize all xqar files from current directory: 
ResultPooling

Run the application to summarize all xqar files from a specified directory: 
ResultPooling ../results/ 

Run the application to summarize all xqar files from current directory with given config: 
ResultPooling config.xml 

Run the application to summarize all xqar files from a specified directory with given config: 
ResultPooling ../results/ config.xml 

How was the PR tested?

1. Unit-test with some sample data. All unit tests passed.

Notes