Move /src/Config to /config.
Move src/bootstrap.php to config/bootstrap.php
Update config readers to look under /config.
Move plugin's /src/Config to /config.
Update routes file path.
Fix test cases.
Fix template config file path in StringTemplate.
Update config folder path in templates, comments, docblocks.
Update bake tasks and templates to use new config folder path.
Update global config() function to use new path.
update config folder references
Merge pull request #2 from antograssiot/patch-1

update config folder references
Update paths in docblocks.
Merge pull request #4132 from ADmad/3.0-config-folder

3.0 config folder