Ticket #1: added support for imposed sorting rules inheritance by subfolders

[SebastianMC]

• new syntax: target-folder: Reviews/* <-- applies to folder, subfolders and all descendant folders
• new syntax: target-folder: Reviews/... <-- applies to folder and subfolders
• special case: target-folder: /* tells the plugin to apply the specified sorting to entire vault
• enhanced syntax for '.' - can be used to specify relative path now (e.g. target-folder: ./daily)
• added new sorting attribute (sorting: standard) to actually give back the sorting into the hands of standard Obsidian mechanisms
• fixed a minor bug: some of error messages were displayed only in console, not in the ballons
• unit tests for all new and changed functionality
• README.md updates

[craigconstantine]

oooooooooh, shiny! :)

[SebastianMC]

Tested the new functionality manually, in addition to the high unit tests coverage. Also verified against the newest 0.16.1 pre-release of Obsidian. No issues found.