Convert to Yarn stable

Author: jakeboone02

.gitignore

@@ -18,3 +18,11 @@
 npm-debug.log*
 yarn-debug.log*
 yarn-error.log*
+
+.pnp.*
+.yarn/*
+!.yarn/patches
+!.yarn/plugins
+!.yarn/releases
+!.yarn/sdks
+!.yarn/versions