4.5.0

• Fix report separating lines disappear in intellij IDEA output (appears when gradle output recognized as junit test output).
  Extra zero-width space symbol used to prevent trims.
• Update checkstyle 8.36.2 -> 8.39 (not 8.40 due to Indentation check regression)
• Update checkstyle config:
  • Add JavadocMissingLeadingAsterisk
  • Disable LambdaBodyLength
    as method length check is enough
  • Add optional external suppressions file support:
    just create gradle/config/checkstyle/suppressions.xml and it will be used automatically with the default config
• Update pmd 6.28 -> 6.31
• Update pmd config:
  • Remove AvoidInstantiatingObjectsInLoops
    because its useless most of the time
  • Remove AssignmentInOperand
    because its quite common technique
  • Remove AvoidUsingVolatile
    because it's not an issue but attention pointer
  • Update NcssCount
    methodReportLevel from 30 to 40, classReportLevel from 300 to 500
• Update spotbugs 4.1.3 -> 4.2.1
• Update spotbugs plugin 4.5.1 -> 4.6.0
• Set checkstyle.configDirectory property: required for ${config_loc} variable (#29)