Update maeparser to version 1.3.0 / rev 2 via SR 1001520
    
    https://build.opensuse.org/request/show/1001520
    by user 1Antoine1 + dimstar_suse
    - Update to version 1.3.0:
      * Add two methods to get sub-block names:
        + std::vector<std::string> Block::getBlockNames() const;
        + std::vector<std::string> Block::getIndexedBlockNames() const;
      * Fix some build issues.
    - Remove upstreamed maeparser-1.2.4-cmake-config-installdir.patch.