* Added new Source Group type SourceGroupCustomCommand to UI and ProjectSettings
* The Source Group executes a specified command on every source file
* The variables $SOURCE_PATH, $PROJECT_PATH, $DB_PATH, $STORAGE_VERSION can be passed
* The commands are executed after all other source groups finished indexing
* The command is executed with working directory set to project directory
* Errors during command execution are shown as status update and in the Status View
* SourceGroupCustomCommand cannot be partially cleared, when one file needs clearing the project must be fully re-indexed
* also changed xml elements in sourcegroup settings that specify the used language standard, so that one sourcegroup can maintain multiple language standards
* added migration and migrated sample projects
* added classes for loading a Sonargraph project
* added Sonargraph options to project setup wizard
* added test for generating indexer commands from Sonargraph modules
* fixed sqlite storage crashing in constructor when parent directory of provided path does not exist
* removed unused FileRegister from Java indexing
* removed unused info from IndexerCommandJava
* refactored loading and saving of SourceGroupSettings
* extracted sourcepaths settings to own class that can be re-used
* merged CDB wizard contentents for source file and indexed paths
* unified wizard content for sonargraph project path
* removed include filters from default source groups
* extracted generation of RefreshInfo from Project to RefreshInfoGenerator
* added tests for RefreshInfoGenerator
* added language and standard selection to sonargraph project setup
* added auto-detection for indexed header paths of sonargraph cmake json modules
* Sonargraph::Project can enable/disable support for specific modules
* warn if sonargraph project contains no matching modules
* indexed headers can be detected from sonargraph project
Eberhard Graether