Upgrade to Checkstyle 7.5.1

Release 7.5.1

Bug fixes:

    PackageObjectFactory hides real exception. Author: rnveach #3778
    RightCurly: handling of try-with-resources on several lines with CS 7.5. Author: rnveach, Roman Ivanov #3776

Notes:

    Add the Hibernate Search project to the Checkstyle CI. Author: Roman Ivanov #3790

Release 7.5

Breaking backward compatibility:

    ParameterName: deprecate 'scope' and 'excludeScope' properties, introduce new property 'accessModifiers'. Author: Andrei Selkin #3675

New:

    Ant: Cannot override default Checker. Author: rnveach #3530
    ImportControl should have property which allows to validate specified file path. Author: Jochen Van de Velde #3462

Bug fixes:

    NullPointerException in AbstractHeaderCheck when cache file specified and no header file. Author: rnveach #3771
    RequireThisCheck doesn't see outer classes for anonymous classes. Author: Vladislav Lisetskiy #3041
    NPE on type parameter annotations for this. Author: Markus Rathgeb #3732
    UnusedImports behaviour is different from documentation. Author: Andrei Selkin #3741
    Javadoc: Column number of DetailNode is always 0 for first line. Author: kazachka #3507
    FallThrough check doesn't correctly handle try-with-resources. Author: rnveach #3509
    RedundantModifier: no violation on final enum field methods. Author: rnveach #3582
    NPE in RightCurly with LITERAL_DO on do-while without curly braces. Author: rnveach #3681

Notes:

    reevaluate tokens in google config for NeedBracesCheck. Author: rnveach #3753
    refactoring: RightCurlyCheck code expression. Author: rnveach #3764
    Verify tokens in google config. Author: rnveach #3740
    Verify tokens in checkstyle config. Author: rnveach #3720
    Strive for 100% mutation coverage. Author: rnveach, Roman Ivanov #3708
    doc: Fix typo in config_imports.xml. Author: Jochen Van de Velde
    Investigate pitest tool. Author: Roman Ivanov #3271
    add pgjdbc project at NoErrorTest group of tests . Author: Roman Ivanov #3670
    use shippable CI in testing. Author: Oleg Efremenkov #3316
    doc: fix the escaping of AvoidEscapedUnicodeCharactersCheck's javadocs. Author: Michael Diamond
    use new checks and new properties from sevntu.checkstyle project . Author: rnveach #3064
    CI special phase to enforce 644 permissions on all files. Author: Roman Ivanov, MaksimP #3683
    create xdoc for FileContentsHolder. Author: rnveach #3664
    doc: Fix incorrect documentation for SuppressWithNearbyCommentFilter. Author: Charlie Pai
    doc: how to generate sources after import project to IntelijIdea. Author: Roman Ivanov