[Change] Adjusted some error messages

- Adjusted the `WindowsPipe` to throw a proper `RuntimeException` in cases where we are unable to write to a IPC pipe (There is a difference from `exists` to `can read/write`)
  - A commit awhile ago broke the prior behavior, allowing the Pipe to be written to, causing another exception later. This change lets it fail more safely and as expected
- Clarified the error message for when an `IOException` is thrown for the Mac/Unix pipes
  - Its a bit vague since it triggers under almost any type of operation failure
- Replaced a `printStackTrace` call in `IPCClient#connect` for autoRegister behavior, so it'll now use the logger for the `debugMode` version
- Clarified error message for if the `WinRegistry` constructor fails

src/main/java/com/jagrosh/discordipc/IPCClient.java

@@ -390,7 +390,7 @@ public void connect(DiscordBuild... preferredOrder) throws NoDiscordClientExcept
                     this.registerApp(getApplicationId(), null);
             } catch (Throwable ex) {
                 if (debugMode) {
-                    ex.printStackTrace();
+                    getCurrentLogger(LOGGER).error("Unable to register application", ex);
                 } else {
                     getCurrentLogger(LOGGER).error("Unable to register application, enable debug mode for trace...");
                 }

src/main/java/com/jagrosh/discordipc/entities/pipe/Pipe.java

@@ -192,7 +192,7 @@ private static Pipe createPipe(IPCClient ipcClient, HashMap<String, Callback> ca
             try {
                 return osName.contains("mac") ? new MacPipe(ipcClient, callbacks, location) : new UnixPipe(ipcClient, callbacks, location);
             } catch (IOException e) {
-                throw new RuntimeException(e);
+                throw new RuntimeException("Unable to create MacOS/Unix Pipe", e);
             }
         } else {
             throw new RuntimeException("Unsupported OS: " + osName);

src/main/java/com/jagrosh/discordipc/entities/pipe/WindowsPipe.java

@@ -43,7 +43,7 @@ public class WindowsPipe extends Pipe {
         try {
             this.file = new RandomAccessFile(location, "rw");
         } catch (FileNotFoundException e) {
-            this.file = null;
+            throw new RuntimeException("Unable to access '" + location + "', check file permissions", e);
         }
     }
 

src/main/java/com/jagrosh/discordipc/impl/WinRegistry.java

@@ -79,7 +79,7 @@ public class WinRegistry {
                     "WindowsRegDeleteKey", (javaSpec >= 11 ? long.class : int.class),
                     byte[].class);
         } catch (Exception e) {
-            throw new RuntimeException(e);
+            throw new RuntimeException("Unable to setup registry data", e);
         }
     }