Adds kind fixes deleting broken symlinks

`delete()` and other functions would check `exists` to do certain behaviors, but `exists` will validate a symlink if the entry is a symlink, thus instead we check if the path is an actual entry now instead.

Tests/PathTests/XCTestManifests.swift

@@ -27,6 +27,7 @@ extension PathTests {
         ("testInitializerForRelativePath", testInitializerForRelativePath),
         ("testIsDirectory", testIsDirectory),
         ("testJoin", testJoin),
+        ("testKind", testKind),
         ("testLock", testLock),
         ("testMkpathIfExists", testMkpathIfExists),
         ("testMktemp", testMktemp),