Lgndr: Prefix files that aren't part of legendary with 'api_'
Lgndr: Return statistics from 'verify_game' instead of parsing the exception
VerifyWorker: Add 'error' signal for exceptions.
Lgndr: Move code segments copied from `prepare_download` back to their original location in `install_game`
Lgndr: Add the LgndrLogHandler at initialization instead of every function.
Lgndr: Move `verify_game` to its original place in `LegendaryCLI`
Lgndr: Change the way DLManager is patched into LegendaryCore proper
Shared: Add singleton for LegendaryCLI, LegendaryCoreSignleton returns core from LegendaryCLI
VerifyWorker: Update to use `verify_game` from `LegendaryCLI` directly
PreLaunchThread: Initialize LegendaryCLI to get LegendaryCore from it
InstallDialog: Update `prepare_install` argument names
Shared: Require an argument to initialize the each singleton, if it is called uninitialized, raise a RuntimeError
InstallDialog: Use QCheckBox label for the information text and remove the layout
LaunchDialog: Minor code clarity improvements
Console: add a Dialog with the process's environment variables
GameUtils: Inherit the system's environment and not a clean one
ImportGroup: Add the ability to automatically import all games in a folder
RareStyle: Use rgb values, remove hex codes and rgba values
IndicatorLineEdit/PathEdit: Infer object names from class name, don't override layout method
Models: Type fields as Optional (`Union[<something>, None]`)
Paths: Use pathlib for everything
Signed-off-by: Stelios Tsampas <loathingkernel@gmail.com>