Use wpilib/year/tools/PathWeaver for configuration folder

[modelmat]

Is your feature request related to a problem? Please describe.
Currently, the PathWeaver folder is created in the $HOME directory, which gets cluterred on Linux.

Describe the solution you'd like
PathWeaver should store configuration files underneath ~/wpilib/<build-year>/tools/PathWeaver.

Additional context

PathWeaver/src/main/java/edu/wpi/first/pathweaver/ProgramPreferences.java

Line 26 in eff54f5

directory = System.getProperty("user.home") + "/PathWeaver/";

PathWeaver/src/main/java/edu/wpi/first/pathweaver/extensions/ExtensionManager.java

Line 22 in c5547bd

private final String directory = System.getProperty("user.home") + "/PathWeaver/Games";

PathWeaver/src/main/java/edu/wpi/first/pathweaver/Loggers.java

Line 40 in c5547bd

String directory = System.getProperty("user.home") + "/PathWeaver/logs";

[gftabor]

I am not opposed to the idea specifically. I am honestly surprised it isn't a hidden directory anyway (.Pathweaver instead of Pathweaver)

Even if Windows doesn't seem to honor the . means hidden convention.

[carbotaniuman]

We can't get to this in season, but it will definitely occur before 2021.