Minor - adjust PlayerAuth builder methods

- Rename hash() to password()
- Add location(Location) builder method
- Replace usages of password(new EncryptedPassword(hash, salt)) to the more terse password(String, String) builder method

src/main/java/fr/xephi/authme/api/API.java

@@ -140,7 +140,7 @@ public class API {
         }
         PlayerAuth auth = PlayerAuth.builder()
             .name(name)
-            .hash(encryptedPassword)
+            .password(encryptedPassword)
             .lastLogin(0)
             .realName(playerName)
             .build();

src/main/java/fr/xephi/authme/api/NewAPI.java

@@ -155,7 +155,7 @@ public class NewAPI {
         }
         PlayerAuth auth = PlayerAuth.builder()
             .name(name)
-            .hash(result)
+            .password(result)
             .realName(playerName)
             .build();
         return plugin.getDataSource().saveAuth(auth);