Pipeline: Multibranch build strategy extension

This plugin provides additional configuration to prevent multibranch projects from triggering new builds based on a include or exclude regions in source repository or existence of a specific phrase in commit message of latest added commit.
Each region uses ant pattern matching, and must be separated by a new line. Any commented line should start by #
Each message uses Java pattern matching based on standard java.util.regex package, and must be separated by a new line. Examples: Exclusion (Region) # excluding html and jpeg changes to trigger builds src/main/web/**/*.html src/main/web/**/*.jpeg Inclusion (Region) # Any changes on java files will trigger build src/main/java/**/*.java Exclusion (Message) .*\[ci\-skip\].* .*\[maven\-release\-plugin\].*